diff --git a/change_log.txt b/change_log.txt
index c51189335a..025d17cb63 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -4,6 +4,11 @@ Started 2007-June-11
 Please add newer entries at the top, list the date and your name with
 email address.
 
+2007-Nov-29 UPDATE  Jean-Pierre Charras <jean-pierre.charras@inpg.fr>
+================================================================================
++pcbnew:
+	Removed a bug (function block() ) which crashes pcbnew when erasing a zone by block delete
+
 
 2007-Nov-27 UPDATE   Dick Hollenbeck <dick@softplc.com>
 ================================================================================
diff --git a/how-to-build-kicad.txt b/how-to-build-kicad.txt
index d4aa085b71..90bbf150fa 100644
--- a/how-to-build-kicad.txt
+++ b/how-to-build-kicad.txt
@@ -36,7 +36,7 @@ in kicad-dev:
  lines to edit:
  STD_INSTALL = 1
  which can be (see comments in libs.linux)
- STD_INSTALL = 1
+ STD_INSTALL = 0 (or 2)
 
  after libs.linux edition:
  run make -f makefile.gtk
diff --git a/include/build_version.h b/include/build_version.h
index 37c31161f2..8162e1e036 100644
--- a/include/build_version.h
+++ b/include/build_version.h
@@ -5,7 +5,7 @@
 
 COMMON_GLOBL wxString g_BuildVersion
 #ifdef EDA_BASE
-	(wxT("(2007-11-19)"))
+	(wxT("(2007-11-29)"))
 #endif
 ;
 
diff --git a/pcbnew/block.cpp b/pcbnew/block.cpp
index f660f92437..f22d0d25bd 100644
--- a/pcbnew/block.cpp
+++ b/pcbnew/block.cpp
@@ -565,17 +565,17 @@ void WinEDA_BasePcbFrame::Block_Delete( wxDC* DC )
     /* Effacement des Zones */
     if( Block_Include_Zones )
     {
-        TRACK* pt_segm;
+        SEGZONE* pt_segm, *NextSegZ;
 
         Affiche_Message( _( "Delete zones" ) );
-        for( pt_segm = m_Pcb->m_Zone; pt_segm != NULL; pt_segm = (TRACK*) NextS )
+        for( pt_segm = m_Pcb->m_Zone; pt_segm != NULL; pt_segm = NextSegZ )
         {
-            NextS = pt_segm->Next();
+            NextSegZ = pt_segm->Next();
             if( IsSegmentInBox( GetScreen()->BlockLocate, pt_segm ) )
             {    
-                /* la piste est ici bonne a etre efface */
+                /* The segment zone is in the block: delete it */
                 pt_segm->Draw( DrawPanel, DC, GR_XOR );
-                PtStruct->DeleteStructure();
+                pt_segm->DeleteStructure();
             }
         }
     }