diff --git a/common/build_version.cpp b/common/build_version.cpp
index 57351cb774..d403049268 100644
--- a/common/build_version.cpp
+++ b/common/build_version.cpp
@@ -9,7 +9,7 @@
 #define KICAD_BUILD_VERSION "(2010-02-17)"
 #endif
 
-#define VERSION_STABILITY "RC3"
+#define VERSION_STABILITY "RC3a"
 
 /** Function GetBuildVersion()
  * Return the build date and version
diff --git a/eeschema/annotate.cpp b/eeschema/annotate.cpp
index 79022c04e5..c5d1940058 100644
--- a/eeschema/annotate.cpp
+++ b/eeschema/annotate.cpp
@@ -228,7 +228,7 @@ void WinEDA_SchematicFrame::DeleteAnnotation( bool aCurrentSheetOnly,
             }
         }
 
-        screen->SetModify();
+        OnModify( );
         if( aCurrentSheetOnly )
             break;
         screen = ScreenList.GetNext();
diff --git a/eeschema/block.cpp b/eeschema/block.cpp
index b5af40e1c5..3a396e0e62 100644
--- a/eeschema/block.cpp
+++ b/eeschema/block.cpp
@@ -171,7 +171,7 @@ void WinEDA_SchematicFrame::HandleBlockPlace( wxDC* DC )
         break;
     }
 
-    GetScreen()->SetModify();
+    OnModify( );
 
     /* clear struct.m_Flags  */
     SCH_ITEM* Struct;
@@ -268,7 +268,7 @@ int WinEDA_SchematicFrame::HandleBlockEnd( wxDC* DC )
             {
                 ii = -1;
                 DeleteItemsInList( DrawPanel, block->m_ItemsSelection );
-                GetScreen()->SetModify();
+                OnModify( );
             }
             block->ClearItemsList();
             TestDanglingEnds( GetScreen()->EEDrawList, DC );
@@ -395,7 +395,7 @@ void WinEDA_SchematicFrame::HandleBlockEndByPopUp( int Command, wxDC* DC )
         {
             ii = -1;
             DeleteItemsInList( DrawPanel, block->m_ItemsSelection );
-            GetScreen()->SetModify();
+            OnModify( );
         }
         TestDanglingEnds( GetScreen()->EEDrawList, DC );
         DrawPanel->Refresh();
@@ -440,7 +440,7 @@ void WinEDA_SchematicFrame::HandleBlockEndByPopUp( int Command, wxDC* DC )
                                 UR_MIRRORED_Y,
                                 mirrorPoint );
             MirrorListOfItems( block->m_ItemsSelection, mirrorPoint );
-            GetScreen()->SetModify();
+            OnModify( );
         }
         TestDanglingEnds( GetScreen()->EEDrawList, DC );
         DrawPanel->Refresh();
@@ -578,7 +578,7 @@ void WinEDA_SchematicFrame::PasteListOfItems( wxDC* DC )
         Struct = Struct->Next() )
         Struct->m_Flags = 0;
 
-    GetScreen()->SetModify();
+    OnModify( );
 
     return;
 }
diff --git a/eeschema/block_libedit.cpp b/eeschema/block_libedit.cpp
index 243976d8f6..c7f8849e00 100644
--- a/eeschema/block_libedit.cpp
+++ b/eeschema/block_libedit.cpp
@@ -259,7 +259,7 @@ void WinEDA_LibeditFrame::HandleBlockPlace( wxDC* DC )
         break;
     }
 
-    GetScreen()->SetModify();
+    OnModify();
 
     DrawPanel->ManageCurseur             = NULL;
     DrawPanel->ForceCloseManageCurseur   = NULL;
diff --git a/eeschema/bus-wire-junction.cpp b/eeschema/bus-wire-junction.cpp
index e0192e3935..11f9119d39 100644
--- a/eeschema/bus-wire-junction.cpp
+++ b/eeschema/bus-wire-junction.cpp
@@ -361,7 +361,7 @@ void WinEDA_SchematicFrame::EndSegment( wxDC* DC )
     SaveCopyInUndoList( s_OldWiresList, UR_WIRE_IMAGE );
     s_OldWiresList = NULL;
 
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
@@ -537,7 +537,7 @@ SCH_JUNCTION* WinEDA_SchematicFrame::CreateNewJunctionStruct(
 
     NewJunction->SetNext( GetScreen()->EEDrawList );
     GetScreen()->EEDrawList = NewJunction;
-    GetScreen()->SetModify();
+    OnModify( );
     if( PutInUndoList )
         SaveCopyInUndoList( NewJunction, UR_NEW );
     return NewJunction;
@@ -558,7 +558,7 @@ SCH_NO_CONNECT* WinEDA_SchematicFrame::CreateNewNoConnectStruct( wxDC* DC )
 
     NewNoConnect->SetNext( GetScreen()->EEDrawList );
     GetScreen()->EEDrawList = NewNoConnect;
-    GetScreen()->SetModify();
+    OnModify( );
     SaveCopyInUndoList( NewNoConnect, UR_NEW );
     return NewNoConnect;
 }
diff --git a/eeschema/busentry.cpp b/eeschema/busentry.cpp
index 7991fcdcae..851a1b9412 100644
--- a/eeschema/busentry.cpp
+++ b/eeschema/busentry.cpp
@@ -79,7 +79,7 @@ SCH_BUS_ENTRY* WinEDA_SchematicFrame::CreateBusEntry( wxDC* DC,
     RedrawOneStruct( DrawPanel, DC, BusEntry, g_XorMode );
     DrawPanel->CursorOn( DC );      // Display schematic cursor
 
-    GetScreen()->SetModify();
+    OnModify( );
 
     StartMoveBusEntry( BusEntry, DC );
     return BusEntry;
@@ -151,7 +151,7 @@ void WinEDA_SchematicFrame::SetBusEntryShape( wxDC*          DC,
 
     TestDanglingEnds( GetScreen()->EEDrawList, NULL );
     RedrawOneStruct( DrawPanel, DC, BusEntry, g_XorMode );
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
diff --git a/eeschema/class_drawsheet.cpp b/eeschema/class_drawsheet.cpp
index ddb1872864..bc2d4c4c8c 100644
--- a/eeschema/class_drawsheet.cpp
+++ b/eeschema/class_drawsheet.cpp
@@ -252,7 +252,7 @@ void SCH_SHEET::CleanupSheet( WinEDA_SchematicFrame* aFrame,
         NextPinsheet = Pinsheet->Next();
         if( HLabel == NULL )   // Hlabel not found: delete pinsheet
         {
-            aFrame->GetScreen()->SetModify();
+            aFrame->OnModify( );
             aFrame->DeleteSheetLabel( false, Pinsheet );
         }
         Pinsheet = NextPinsheet;
diff --git a/eeschema/class_sch_cmp_field.cpp b/eeschema/class_sch_cmp_field.cpp
index 06725940d9..03a3a04c1f 100644
--- a/eeschema/class_sch_cmp_field.cpp
+++ b/eeschema/class_sch_cmp_field.cpp
@@ -420,6 +420,6 @@ void SCH_FIELD::Place( WinEDA_SchematicFrame* frame, wxDC* DC )
     Draw( frame->DrawPanel, DC, wxPoint( 0, 0 ), GR_DEFAULT_DRAWMODE );
     m_Flags = 0;
     frame->GetScreen()->SetCurItem( NULL );
-    frame->GetScreen()->SetModify();
+    frame->OnModify( );
     frame->SetCurrentField( NULL );
 }
diff --git a/eeschema/delete.cpp b/eeschema/delete.cpp
index 11e037bb2b..bb96becd8e 100644
--- a/eeschema/delete.cpp
+++ b/eeschema/delete.cpp
@@ -318,7 +318,7 @@ void WinEDA_SchematicFrame::DeleteConnection( bool DeleteFullConnection )
     if( pickList.GetCount() )
     {
         DeleteItemsInList( DrawPanel, pickList );
-        GetScreen()->SetModify();
+        OnModify( );
     }
 }
 
@@ -367,7 +367,7 @@ bool LocateAndDeleteItem( WinEDA_SchematicFrame* frame, wxDC* DC )
         g_ItemToRepeat = NULL;
         DeleteStruct( frame->DrawPanel, DC, DelStruct );
         frame->TestDanglingEnds( frame->GetScreen()->EEDrawList, DC );
-        frame->GetScreen()->SetModify();
+        frame->OnModify( );
         item_deleted = TRUE;
     }
 
diff --git a/eeschema/dialog_edit_component_in_schematic.cpp b/eeschema/dialog_edit_component_in_schematic.cpp
index 7417871938..e054443eec 100644
--- a/eeschema/dialog_edit_component_in_schematic.cpp
+++ b/eeschema/dialog_edit_component_in_schematic.cpp
@@ -279,7 +279,7 @@ void DIALOG_EDIT_COMPONENT_IN_SCHEMATIC::OnOKButtonClick( wxCommandEvent& event
     m_Cmp->SetRef( m_Parent->GetSheet(), m_FieldsBuf[REFERENCE].m_Text );
 
 
-    m_Parent->GetScreen()->SetModify();
+    m_Parent->OnModify( );
 
     m_Parent->TestDanglingEnds( m_Parent->GetScreen()->EEDrawList, NULL );
 
@@ -744,7 +744,7 @@ void DIALOG_EDIT_COMPONENT_IN_SCHEMATIC::SetInitCmp( wxCommandEvent& event )
 
     m_Cmp->SetOrientation( CMP_NORMAL );
 
-    m_Parent->GetScreen()->SetModify();
+    m_Parent->OnModify( );
 
     RedrawOneStruct( m_Parent->DrawPanel, &dc, m_Cmp, GR_DEFAULT_DRAWMODE );
     EndModal( 1 );
diff --git a/eeschema/dialog_edit_label.cpp b/eeschema/dialog_edit_label.cpp
index 7d629d1639..c2a657e131 100644
--- a/eeschema/dialog_edit_label.cpp
+++ b/eeschema/dialog_edit_label.cpp
@@ -224,7 +224,7 @@ void DialogLabelEditor::TextPropertiesAccept( wxCommandEvent& event )
         m_CurrentText->m_Width = 0;
     }
 
-    m_Parent->GetScreen()->SetModify();
+    m_Parent->OnModify( );
 
     /* Make the text size as new default size if it is a new text */
     if( (m_CurrentText->m_Flags & IS_NEW) != 0 )
diff --git a/eeschema/dialog_edit_libentry_fields_in_lib.cpp b/eeschema/dialog_edit_libentry_fields_in_lib.cpp
index 3955632c54..45f158657c 100644
--- a/eeschema/dialog_edit_libentry_fields_in_lib.cpp
+++ b/eeschema/dialog_edit_libentry_fields_in_lib.cpp
@@ -249,7 +249,7 @@ alias %s already exists!\nCannot update this component" ),
     // copy all the fields back, and change the length of m_Fields.
     m_LibEntry->SetFields( m_FieldsBuf );
 
-    m_Parent->GetScreen()->SetModify();
+    m_Parent->OnModify( );
 
     EndModal( 0 );
 }
diff --git a/eeschema/edit_component_in_lib.cpp b/eeschema/edit_component_in_lib.cpp
index 2d36774120..e1344055b3 100644
--- a/eeschema/edit_component_in_lib.cpp
+++ b/eeschema/edit_component_in_lib.cpp
@@ -47,7 +47,7 @@ void WinEDA_LibeditFrame::EditComponentProperties()
     UpdatePartSelectList();
     DisplayLibInfos();
     DisplayCmpDoc();
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
@@ -330,7 +330,7 @@ bool DIALOG_EDIT_COMPONENT_IN_LIBRARY::SetUnsetConvert()
     }
 
     component->SetConversion( m_Parent->GetShowDeMorgan() );
-    m_Parent->GetScreen()->SetModify();
+    m_Parent->OnModify( );
 
     return true;
 }
diff --git a/eeschema/edit_component_in_schematic.cpp b/eeschema/edit_component_in_schematic.cpp
index 67e7f9533d..22dd97b427 100644
--- a/eeschema/edit_component_in_schematic.cpp
+++ b/eeschema/edit_component_in_schematic.cpp
@@ -167,7 +167,7 @@ modified!\nYou must create a new power"  ) );
 
     Field->Draw( DrawPanel, DC, wxPoint( 0, 0 ), g_XorMode );
     Cmp->DisplayInfo( this );
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
@@ -277,7 +277,7 @@ void WinEDA_SchematicFrame::RotateCmpField( SCH_FIELD* Field, wxDC* DC )
         Field->m_Orient = TEXT_ORIENT_HORIZ;
     Field->Draw( DrawPanel, DC, wxPoint( 0, 0 ), g_XorMode );
 
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
@@ -320,7 +320,7 @@ void WinEDA_SchematicFrame::EditComponentReference( SCH_COMPONENT* Cmp,
                                                                   0 ),
                                           Cmp->m_Flags ? g_XorMode :
                                           GR_DEFAULT_DRAWMODE );
-        GetScreen()->SetModify();
+        OnModify( );
     }
     Cmp->DisplayInfo( this );
 }
@@ -358,7 +358,7 @@ void WinEDA_SchematicFrame::EditComponentValue( SCH_COMPONENT* Cmp, wxDC* DC )
         TextField->m_Text = message;
         TextField->Draw( DrawPanel, DC, wxPoint( 0, 0 ),
                          Cmp->m_Flags ? g_XorMode : GR_DEFAULT_DRAWMODE );
-        GetScreen()->SetModify();
+        OnModify( );
     }
 
     Cmp->DisplayInfo( this );
@@ -422,7 +422,7 @@ void WinEDA_SchematicFrame::EditComponentFootprint( SCH_COMPONENT* Cmp,
     Cmp->GetField( FOOTPRINT )->Draw( DrawPanel, DC, wxPoint( 0, 0 ),
                                       Cmp->m_Flags ? g_XorMode :
                                       GR_DEFAULT_DRAWMODE );
-    GetScreen()->SetModify();
+    OnModify( );
 
     Cmp->DisplayInfo( this );
 }
diff --git a/eeschema/edit_graphic_bodyitem_text.cpp b/eeschema/edit_graphic_bodyitem_text.cpp
index 04781d5722..bf07b068c3 100644
--- a/eeschema/edit_graphic_bodyitem_text.cpp
+++ b/eeschema/edit_graphic_bodyitem_text.cpp
@@ -241,7 +241,7 @@ void WinEDA_LibeditFrame::EditSymbolText(wxDC* DC, LIB_DRAW_ITEM* DrawItem)
                                                    (LIB_TEXT*) DrawItem );
     frame->ShowModal();
     frame->Destroy();
-    GetScreen()->SetModify();
+    OnModify( );
 
     /* Display new text. */
     if( DC )
@@ -279,7 +279,7 @@ void WinEDA_LibeditFrame::RotateSymbolText(wxDC * DC)
     else
         DrawItem->m_Orient = TEXT_ORIENT_HORIZ;
 
-    GetScreen()->SetModify();
+    OnModify( );
 
     /* Redraw item with new orient */
     if ( DrawPanel->ManageCurseur == NULL )
diff --git a/eeschema/edit_label.cpp b/eeschema/edit_label.cpp
index 0312420103..7ad283fac0 100644
--- a/eeschema/edit_label.cpp
+++ b/eeschema/edit_label.cpp
@@ -62,7 +62,7 @@ void WinEDA_SchematicFrame::StartMoveTexte( SCH_TEXT* TextStruct, wxDC* DC )
     GetScreen()->m_Curseur = ItemInitialPosition;
     DrawPanel->MouseToCursorSchema();
 
-    GetScreen()->SetModify();
+    OnModify( );
     DrawPanel->ManageCurseur = ShowWhileMoving;
     DrawPanel->ForceCloseManageCurseur = ExitMoveTexte;
     GetScreen()->SetCurItem( TextStruct );
@@ -107,7 +107,7 @@ void WinEDA_SchematicFrame::ChangeTextOrient( SCH_TEXT* TextStruct, wxDC* DC )
         break;
     }
 
-    GetScreen()->SetModify();
+    OnModify( );
     RedrawOneStruct( DrawPanel, DC, TextStruct, g_XorMode );
     DrawPanel->CursorOn( DC );
 }
@@ -321,7 +321,7 @@ void WinEDA_SchematicFrame::ConvertTextType( SCH_TEXT* Text,
     {
         newtext->SetNext( GetScreen()->EEDrawList );
         GetScreen()->EEDrawList = newtext;
-        GetScreen()->SetModify();
+        OnModify( );
     }
 
     /* now delete the old text
diff --git a/eeschema/getpart.cpp b/eeschema/getpart.cpp
index 80c38a8b1f..9f63260856 100644
--- a/eeschema/getpart.cpp
+++ b/eeschema/getpart.cpp
@@ -272,7 +272,7 @@ void WinEDA_SchematicFrame::CmpRotationMiroir( SCH_COMPONENT* DrawComponent,
     }
 
     TestDanglingEnds( GetScreen()->EEDrawList, DC );
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
@@ -351,7 +351,7 @@ void WinEDA_SchematicFrame::SelPartUnit( SCH_COMPONENT* DrawComponent,
                              GR_DEFAULT_DRAWMODE );
 
     TestDanglingEnds( GetScreen()->EEDrawList, DC );
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
@@ -397,7 +397,7 @@ void WinEDA_SchematicFrame::ConvertPart( SCH_COMPONENT* DrawComponent,
                              GR_DEFAULT_DRAWMODE );
 
     TestDanglingEnds( GetScreen()->EEDrawList, DC );
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
diff --git a/eeschema/hotkeys.cpp b/eeschema/hotkeys.cpp
index 1bb40315d7..9c876049bf 100644
--- a/eeschema/hotkeys.cpp
+++ b/eeschema/hotkeys.cpp
@@ -325,7 +325,7 @@ void WinEDA_SchematicFrame::OnHotKey( wxDC* DC, int hotkey,
         if( !ItemInEdit && screen->m_BlockLocate.m_State == STATE_NO_BLOCK )
         {
             RefreshToolBar = LocateAndDeleteItem( this, DC );
-            GetScreen()->SetModify();
+            OnModify( );
             GetScreen()->SetCurItem( NULL );
             TestDanglingEnds( GetScreen()->EEDrawList, DC );
         }
diff --git a/eeschema/libedit.cpp b/eeschema/libedit.cpp
index 8d0dc5ce63..d6c6955bc5 100644
--- a/eeschema/libedit.cpp
+++ b/eeschema/libedit.cpp
@@ -561,7 +561,7 @@ created. Aborted" ) );
     g_EditPinByPinIsOn = false;
     m_lastDrawItem = NULL;
     GetScreen()->ClearUndoRedoList();
-    GetScreen()->SetModify();
+    OnModify( );
     DrawPanel->Refresh();
 }
 
diff --git a/eeschema/libedit_onleftclick.cpp b/eeschema/libedit_onleftclick.cpp
index 1049c889d4..d6418163d3 100644
--- a/eeschema/libedit_onleftclick.cpp
+++ b/eeschema/libedit_onleftclick.cpp
@@ -136,7 +136,7 @@ void WinEDA_LibeditFrame::OnLeftClick( wxDC* DC, const wxPoint& MousePos )
             else
                 m_component->RemoveDrawItem( DrawEntry, DrawPanel, DC );
             DrawEntry = NULL;
-            GetScreen()->SetModify();
+            OnModify( );
             break;
 
         case ID_LIBEDIT_ANCHOR_ITEM_BUTT:
diff --git a/eeschema/libedit_undo_redo.cpp b/eeschema/libedit_undo_redo.cpp
index 694991c309..0cd81a78b8 100644
--- a/eeschema/libedit_undo_redo.cpp
+++ b/eeschema/libedit_undo_redo.cpp
@@ -69,7 +69,7 @@ void WinEDA_LibeditFrame::GetComponentFromRedoList(wxCommandEvent& event)
         SetShowDeMorgan( m_component->HasConversion() );
     DisplayLibInfos();
     DisplayCmpDoc();
-    GetScreen()->SetModify();
+    OnModify( );
     DrawPanel->Refresh();
 }
 
@@ -105,6 +105,6 @@ void WinEDA_LibeditFrame::GetComponentFromUndoList(wxCommandEvent& event)
         SetShowDeMorgan( m_component->HasConversion() );
     DisplayLibInfos();
     DisplayCmpDoc();
-    GetScreen()->SetModify();
+    OnModify( );
     DrawPanel->Refresh();
 }
diff --git a/eeschema/libeditframe.cpp b/eeschema/libeditframe.cpp
index 93d7ec0eba..fecf169d0e 100644
--- a/eeschema/libeditframe.cpp
+++ b/eeschema/libeditframe.cpp
@@ -799,7 +799,7 @@ void WinEDA_LibeditFrame::Process_Special_Functions( wxCommandEvent& event )
         }
 
         m_drawItem = NULL;
-        GetScreen()->SetModify();
+        OnModify( );
         DrawPanel->CursorOn( &dc );
         break;
 
diff --git a/eeschema/libeditframe.h b/eeschema/libeditframe.h
index d91de2afb9..b16838d7d9 100644
--- a/eeschema/libeditframe.h
+++ b/eeschema/libeditframe.h
@@ -90,6 +90,15 @@ public:
     void LoadSettings();
     void SaveSettings();
 
+    /** Function OnModify()
+     * Must be called after a schematic change
+     * in order to set the "modify" flag of the current screen
+     */
+    void OnModify( )
+    {
+        GetScreen()->SetModify();
+    }
+
     LIB_COMPONENT* GetComponent( void ) { return m_component; }
 
     CMP_LIBRARY* GetLibrary( void ) { return m_library; }
diff --git a/eeschema/libfield.cpp b/eeschema/libfield.cpp
index e5aa168661..797142bd63 100644
--- a/eeschema/libfield.cpp
+++ b/eeschema/libfield.cpp
@@ -120,7 +120,7 @@ void WinEDA_LibeditFrame::PlaceField( wxDC* DC, LIB_FIELD* Field )
                  &fieldText, DefaultTransformMatrix );
 
     DrawPanel->CursorOn( DC );
-    GetScreen()->SetModify();
+    OnModify( );
     DrawPanel->ManageCurseur = NULL;
     DrawPanel->ForceCloseManageCurseur = NULL;
     m_drawItem = NULL;
@@ -217,7 +217,7 @@ not conflict with any library entries." ),
     Field->Draw( DrawPanel, DC, wxPoint( 0, 0 ), -1, drawMode, &fieldText,
                  DefaultTransformMatrix );
 
-    GetScreen()->SetModify();
+    OnModify( );
     UpdateAliasSelectList();
 }
 
@@ -234,7 +234,7 @@ void WinEDA_LibeditFrame::RotateField( wxDC* DC, LIB_FIELD* Field )
     if( Field == NULL )
         return;
 
-    GetScreen()->SetModify();
+    OnModify( );
     DrawPanel->CursorOff( DC );
     GRSetDrawMode( DC, g_XorMode );
 
diff --git a/eeschema/onleftclick.cpp b/eeschema/onleftclick.cpp
index b771c68a53..3f88a45dad 100644
--- a/eeschema/onleftclick.cpp
+++ b/eeschema/onleftclick.cpp
@@ -149,7 +149,7 @@ void WinEDA_SchematicFrame::OnLeftClick( wxDC* DC, const wxPoint& MousePos )
 
     case ID_SCHEMATIC_DELETE_ITEM_BUTT:
         LocateAndDeleteItem( this, DC );
-        GetScreen()->SetModify();
+        OnModify( );
         GetScreen()->SetCurItem( NULL );
         TestDanglingEnds( GetScreen()->EEDrawList, NULL );
         DrawPanel->Refresh( TRUE );
diff --git a/eeschema/pinedit.cpp b/eeschema/pinedit.cpp
index 4cd867dba2..a5f97fa41d 100644
--- a/eeschema/pinedit.cpp
+++ b/eeschema/pinedit.cpp
@@ -62,7 +62,7 @@ void WinEDA_LibeditFrame::OnRotatePin( wxCommandEvent& event ){
 	// Set the new orientation
 	pin->SetOrientation(pin->GetOrientationCode(orientationIndex));
 
-	GetScreen()->SetModify();
+	OnModify( );
 	pin->DisplayInfo( this );
 	DrawPanel->Refresh();
 
@@ -158,7 +158,7 @@ void WinEDA_LibeditFrame::OnEditPin( wxCommandEvent& event )
         if( !pin->IsNew() )
             SaveCopyInUndoList( pin->GetParent() );
 
-        GetScreen()->SetModify();
+        OnModify( );
         pin->DisplayInfo( this );
         DrawPanel->Refresh();
     }
@@ -244,7 +244,7 @@ another pin. Continue?" ) );
 
     DrawPanel->ManageCurseur = NULL;
     DrawPanel->ForceCloseManageCurseur = NULL;
-    GetScreen()->SetModify();
+    OnModify( );
     CurrentPin->m_Pos = newpos;
 
     if( CurrentPin->IsNew() )
@@ -394,7 +394,7 @@ void WinEDA_LibeditFrame::DeletePin( wxDC*          DC,
         }
     }
 
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
@@ -539,7 +539,7 @@ void WinEDA_LibeditFrame::GlobalSetPins( wxDC* DC, LIB_PIN* MasterPin, int id )
     if( MasterPin->Type() != COMPONENT_PIN_DRAW_TYPE )
         return;
 
-    GetScreen()->SetModify();
+    OnModify( );
 
     Pin = m_component->GetNextPin();
     for( ; Pin != NULL; Pin = m_component->GetNextPin( Pin ) )
@@ -614,7 +614,7 @@ void WinEDA_LibeditFrame::RepeatPinItem( wxDC* DC, LIB_PIN* SourcePin )
     DrawPanel->CursorOn( DC );
 
     Pin->DisplayInfo( this );
-    GetScreen()->SetModify();
+    OnModify( );
 }
 
 
diff --git a/eeschema/schedit.cpp b/eeschema/schedit.cpp
index 81867f7c00..a9072f233f 100644
--- a/eeschema/schedit.cpp
+++ b/eeschema/schedit.cpp
@@ -349,7 +349,7 @@ void WinEDA_SchematicFrame::Process_Special_Functions( wxCommandEvent& event )
             g_ItemToRepeat = NULL;
             TestDanglingEnds( screen->EEDrawList, &dc );
             SetSheetNumberAndCount();
-            screen->SetModify();
+            OnModify();
         }
         break;
 
@@ -370,7 +370,7 @@ void WinEDA_SchematicFrame::Process_Special_Functions( wxCommandEvent& event )
 
     case ID_POPUP_SCH_EDIT_SHEET:
         if( EditSheet( (SCH_SHEET*) screen->GetCurItem(), &dc ) )
-            screen->SetModify();
+            OnModify();
         break;
 
     case ID_POPUP_IMPORT_GLABEL:
diff --git a/eeschema/schematic_undo_redo.cpp b/eeschema/schematic_undo_redo.cpp
index b5f2ba3e72..634097706a 100644
--- a/eeschema/schematic_undo_redo.cpp
+++ b/eeschema/schematic_undo_redo.cpp
@@ -438,7 +438,7 @@ void WinEDA_SchematicFrame::GetSchematicFromUndoList(wxCommandEvent& event)
     GetScreen()->PushCommandToRedoList( List );
 
 //    m_drawItem = NULL;
-    GetScreen()->SetModify();
+    OnModify( );
     SetSheetNumberAndCount();
     ReCreateHToolbar();
     SetToolbars();
@@ -471,7 +471,7 @@ void WinEDA_SchematicFrame::GetSchematicFromRedoList(wxCommandEvent& event)
     GetScreen()->PushCommandToUndoList( List );
 
 //    m_drawItem = NULL;
-    GetScreen()->SetModify();
+    OnModify( );
     SetSheetNumberAndCount();
     ReCreateHToolbar();
     SetToolbars();
diff --git a/eeschema/schframe.cpp b/eeschema/schframe.cpp
index e6674fd636..ca80ddebf7 100644
--- a/eeschema/schframe.cpp
+++ b/eeschema/schframe.cpp
@@ -449,6 +449,27 @@ wxString WinEDA_SchematicFrame::GetUniqueFilenameForCurrentSheet()
     return filename;
 }
 
+/** Function OnModify()
+ * Must be called after a schematic change
+ * in order to set the "modify" flag of the current screen
+ * and update the date in frame reference
+ */
+void WinEDA_SchematicFrame::OnModify( )
+{
+    GetScreen()->SetModify( );
+
+    wxString       date = GenDate();
+    EDA_ScreenList s_list;
+
+    // Set the date for each sheet
+    // There are 2 possibilities:
+    // >> change only the current sheet
+    // >> change all sheets.
+    // I believe all sheets in a project must have the same date
+    SCH_SCREEN* screen = s_list.GetFirst();
+    for( ; screen != NULL; screen = s_list.GetNext() )
+        screen->m_Date = date;
+}
 
 /*****************************************************************************
 * Enable or disable menu entry and toolbar buttons according to current
diff --git a/eeschema/sheet.cpp b/eeschema/sheet.cpp
index f74140f676..2749e38dc4 100644
--- a/eeschema/sheet.cpp
+++ b/eeschema/sheet.cpp
@@ -260,7 +260,7 @@ void WinEDA_SchematicFrame::ReSizeSheet( SCH_SHEET* aSheet, wxDC* aDC )
         return;
     }
 
-    GetScreen()->SetModify();
+    OnModify( );
     aSheet->m_Flags |= IS_RESIZED;
 
     s_OldPos.x = aSheet->m_Size.x;
diff --git a/eeschema/sheetlab.cpp b/eeschema/sheetlab.cpp
index b067b5ef62..a1ba069123 100644
--- a/eeschema/sheetlab.cpp
+++ b/eeschema/sheetlab.cpp
@@ -294,7 +294,7 @@ SCH_SHEET_PIN* WinEDA_SchematicFrame::Create_PinSheet( SCH_SHEET* Sheet,
     DrawPanel->ForceCloseManageCurseur = ExitPinSheet;
     DrawPanel->ManageCurseur( DrawPanel, DC, TRUE );
 
-    GetScreen()->SetModify();
+    OnModify( );
     return NewSheetLabel;
 }
 
@@ -340,7 +340,7 @@ SCH_SHEET_PIN* WinEDA_SchematicFrame::Import_PinSheet( SCH_SHEET* Sheet,
         return NULL;
     }
 
-    GetScreen()->SetModify();
+    OnModify( );
 
     NewSheetLabel = new SCH_SHEET_PIN( Sheet, wxPoint( 0, 0 ), HLabel->m_Text );
     NewSheetLabel->m_Flags = IS_NEW;
diff --git a/eeschema/symbdraw.cpp b/eeschema/symbdraw.cpp
index 432add4a0d..28ce86c3d6 100644
--- a/eeschema/symbdraw.cpp
+++ b/eeschema/symbdraw.cpp
@@ -116,7 +116,7 @@ void WinEDA_LibeditFrame::EditGraphicSymbol( wxDC* DC, LIB_DRAW_ITEM* DrawItem )
 
     if( component )
         component->GetDrawItemList().sort();
-    GetScreen()->SetModify();
+    OnModify( );
 
     DrawItem->DisplayInfo( this );
     DrawPanel->Refresh();
@@ -915,7 +915,7 @@ void WinEDA_LibeditFrame::EndDrawGraphicItem( wxDC* DC )
     m_drawItem->m_Flags = 0;
     m_drawItem = NULL;
 
-    GetScreen()->SetModify();
+    OnModify( );
 
     DrawPanel->ManageCurseur = NULL;
     DrawPanel->ForceCloseManageCurseur = NULL;
diff --git a/eeschema/symbedit.cpp b/eeschema/symbedit.cpp
index 5a6b30a20b..25acbe107a 100644
--- a/eeschema/symbedit.cpp
+++ b/eeschema/symbedit.cpp
@@ -106,7 +106,7 @@ void WinEDA_LibeditFrame::LoadOneSymbol( void )
     m_component->RemoveDuplicateDrawItems();
     m_component->ClearSelectedItems();
 
-    GetScreen()->SetModify();
+    OnModify( );
     DrawPanel->Refresh();
 
     delete Lib;
@@ -229,7 +229,7 @@ void WinEDA_LibeditFrame::PlaceAncre()
 
     wxPoint offset( -GetScreen()->m_Curseur.x, GetScreen()->m_Curseur.y );
 
-    GetScreen()->SetModify();
+    OnModify( );
 
     m_component->SetOffset( offset );
 
diff --git a/include/wxEeschemaStruct.h b/include/wxEeschemaStruct.h
index b06a57320d..0b94b79ae8 100644
--- a/include/wxEeschemaStruct.h
+++ b/include/wxEeschemaStruct.h
@@ -120,6 +120,12 @@ public:
         m_CurrentField = aCurrentField;
     }
 
+    /** Function OnModify()
+     * Must be called after a schematic change
+     * in order to set the "modify" flag of the current screen
+     * and update the date in frame reference
+     */
+    void OnModify( );
 
     SCH_SHEET_PATH*  GetSheet();
 
diff --git a/version.txt b/version.txt
index e491db8fdb..0bec5e2e4f 100644
--- a/version.txt
+++ b/version.txt
@@ -1,4 +1,4 @@
 release version:
 2010 feb 17
 files (.zip,.tgz):
-kicad-2010-02-17-RC3
+kicad-2010-02-17-RC3a