diff --git a/common/drawpanel_gal.cpp b/common/drawpanel_gal.cpp
index e7471286d6..3ec9568fde 100644
--- a/common/drawpanel_gal.cpp
+++ b/common/drawpanel_gal.cpp
@@ -93,7 +93,10 @@ EDA_DRAW_PANEL_GAL::EDA_DRAW_PANEL_GAL( wxWindow* aParentWindow, wxWindowID aWin
     Connect( KIGFX::WX_VIEW_CONTROLS::EVT_REFRESH_MOUSE,
              wxEventHandler( EDA_DRAW_PANEL_GAL::onEvent ), NULL, this );
 
+    // Set up timer that prevents too frequent redraw commands
     m_refreshTimer.SetOwner( this );
+    m_pendingRefresh = false;
+    m_drawing = false;
     Connect( wxEVT_TIMER, wxTimerEventHandler( EDA_DRAW_PANEL_GAL::onRefreshTimer ), NULL, this );
 
     this->SetFocus();
@@ -121,18 +124,25 @@ void EDA_DRAW_PANEL_GAL::onPaint( wxPaintEvent& WXUNUSED( aEvent ) )
     m_pendingRefresh = false;
     m_lastRefresh = wxGetLocalTimeMillis();
 
-    m_gal->BeginDrawing();
-    m_gal->SetBackgroundColor( KIGFX::COLOR4D( 0.0, 0.0, 0.0, 1.0 ) );
-    m_gal->ClearScreen();
+    if( !m_drawing )
+    {
+        m_drawing = true;
 
-    m_view->ClearTargets();
-    // Grid has to be redrawn only when the NONCACHED target is redrawn
-    if( m_view->IsTargetDirty( KIGFX::TARGET_NONCACHED ) )
-        m_gal->DrawGrid();
-    m_view->Redraw();
-    m_gal->DrawCursor( m_viewControls->GetCursorPosition() );
+        m_gal->BeginDrawing();
+        m_gal->SetBackgroundColor( KIGFX::COLOR4D( 0.0, 0.0, 0.0, 1.0 ) );
+        m_gal->ClearScreen();
 
-    m_gal->EndDrawing();
+        m_view->ClearTargets();
+        // Grid has to be redrawn only when the NONCACHED target is redrawn
+        if( m_view->IsTargetDirty( KIGFX::TARGET_NONCACHED ) )
+            m_gal->DrawGrid();
+        m_view->Redraw();
+        m_gal->DrawCursor( m_viewControls->GetCursorPosition() );
+
+        m_gal->EndDrawing();
+
+        m_drawing = false;
+    }
 }
 
 
diff --git a/common/gal/opengl/cached_container.cpp b/common/gal/opengl/cached_container.cpp
index dda078fd7f..ffdf55aab6 100644
--- a/common/gal/opengl/cached_container.cpp
+++ b/common/gal/opengl/cached_container.cpp
@@ -33,6 +33,7 @@
 #include <gal/opengl/vertex_manager.h>
 #include <gal/opengl/vertex_item.h>
 #include <gal/opengl/shader.h>
+#include <confirm.h>
 #include <wx/log.h>
 #include <list>
 #ifdef __WXDEBUG__
@@ -315,7 +316,7 @@ bool CACHED_CONTAINER::defragment( VERTEX* aTarget )
 
         if( aTarget == NULL )
         {
-            wxLogError( wxT( "Run out of memory" ) );
+            DisplayError( NULL, wxT( "Run out of memory" ) );
             return false;
         }
     }
@@ -439,7 +440,7 @@ bool CACHED_CONTAINER::resizeContainer( unsigned int aNewSize )
 
         if( newContainer == NULL )
         {
-            wxLogError( wxT( "Run out of memory" ) );
+            DisplayError( NULL, wxT( "Run out of memory" ) );
             return false;
         }
 
@@ -458,7 +459,7 @@ bool CACHED_CONTAINER::resizeContainer( unsigned int aNewSize )
 
         if( newContainer == NULL )
         {
-            wxLogError( wxT( "Run out of memory" ) );
+            DisplayError( NULL, wxT( "Run out of memory" ) );
             return false;
         }
 
diff --git a/common/gal/opengl/gpu_manager.cpp b/common/gal/opengl/gpu_manager.cpp
index 31dcf547ff..c3f15829ce 100644
--- a/common/gal/opengl/gpu_manager.cpp
+++ b/common/gal/opengl/gpu_manager.cpp
@@ -32,9 +32,12 @@
 #include <gal/opengl/noncached_container.h>
 #include <gal/opengl/shader.h>
 #include <typeinfo>
-#include <wx/log.h>
+#include <wx/msgdlg.h>
+#include <confirm.h>
 #ifdef __WXDEBUG__
 #include <profile.h>
+#include <wx/debug.h>
+#include <wx/log.h>
 #endif
 
 using namespace KIGFX;
@@ -70,7 +73,7 @@ void GPU_MANAGER::SetShader( SHADER& aShader )
 
     if( m_shaderAttrib == -1 )
     {
-        wxLogFatalError( wxT( "Could not get the shader attribute location" ) );
+        DisplayError( NULL, wxT( "Could not get the shader attribute location" ) );
     }
 }
 
@@ -205,7 +208,7 @@ void GPU_CACHED_MANAGER::uploadToGpu()
 
     if( glGetError() != GL_NO_ERROR )
     {
-        wxLogError( wxT( "Error during data upload to the GPU memory" ) );
+        DisplayError( NULL, wxT( "Error during data upload to the GPU memory" ) );
     }
 
 #ifdef __WXDEBUG__
diff --git a/common/gal/opengl/opengl_compositor.cpp b/common/gal/opengl/opengl_compositor.cpp
index 48559e8aa3..af7b52ba5b 100644
--- a/common/gal/opengl/opengl_compositor.cpp
+++ b/common/gal/opengl/opengl_compositor.cpp
@@ -29,7 +29,8 @@
  */
 
 #include <gal/opengl/opengl_compositor.h>
-#include <wx/log.h>
+#include <wx/msgdlg.h>
+#include <confirm.h>
 
 using namespace KIGFX;
 
@@ -97,9 +98,9 @@ unsigned int OPENGL_COMPOSITOR::CreateBuffer()
 
     if( usedBuffers() >= m_maxBuffers )
     {
-        wxLogError( wxT( "Cannot create more framebuffers. OpenGL rendering backend requires at"
-                         "least 3 framebuffers. You may try to update/change "
-                         "your graphic drivers." ) );
+        DisplayError( NULL, wxT( "Cannot create more framebuffers. OpenGL rendering "
+                        "backend requires at least 3 framebuffers. You may try to update/change "
+                        "your graphic drivers." ) );
         return 0;    // Unfortunately we have no more free buffers left
     }
 
@@ -131,38 +132,38 @@ unsigned int OPENGL_COMPOSITOR::CreateBuffer()
         switch( status )
         {
         case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT:
-            wxLogFatalError( wxT( "Cannot create the framebuffer." ) );
+            DisplayError( NULL, wxT( "Cannot create the framebuffer." ) );
             break;
 
         case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT:
-            wxLogFatalError( wxT( "The framebuffer attachment points are incomplete." ) );
+            DisplayError( NULL, wxT( "The framebuffer attachment points are incomplete." ) );
             break;
 
         case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT:
-            wxLogFatalError( wxT( "The framebuffer does not have at least "
-                                  "one image attached to it." ) );
+            DisplayError( NULL, wxT( "The framebuffer does not have at least "
+                                        "one image attached to it." ) );
             break;
 
         case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT:
-            wxLogFatalError( wxT( "The framebuffer read buffer is incomplete." ) );
+            DisplayError( NULL, wxT( "The framebuffer read buffer is incomplete." ) );
             break;
 
         case GL_FRAMEBUFFER_UNSUPPORTED_EXT:
-            wxLogFatalError( wxT( "The combination of internal formats of the attached images "
+            DisplayError( NULL, wxT( "The combination of internal formats of the attached images "
                                   "violates an implementation-dependent set of restrictions." ) );
             break;
 
         case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT:
-            wxLogFatalError( wxT( "GL_RENDERBUFFER_SAMPLES is not the same "
+            DisplayError( NULL, wxT( "GL_RENDERBUFFER_SAMPLES is not the same "
                                   "for all attached renderbuffers" ) );
             break;
 
         case GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_EXT:
-            wxLogFatalError( wxT( "Framebuffer incomplete layer targets errors." ) );
+            DisplayError( NULL, wxT( "Framebuffer incomplete layer targets errors." ) );
             break;
 
         default:
-            wxLogFatalError( wxT( "Cannot create the framebuffer." ) );
+            DisplayError( NULL, wxT( "Cannot create the framebuffer." ) );
             break;
         }
 
@@ -223,7 +224,7 @@ void OPENGL_COMPOSITOR::DrawBuffer( unsigned int aBufferHandle )
 
     if( aBufferHandle == 0 || aBufferHandle > usedBuffers() )
     {
-        wxLogError( wxT( "Wrong framebuffer handle" ) );
+        DisplayError( NULL, wxT( "Wrong framebuffer handle" ) );
         return;
     }
 
diff --git a/common/gal/opengl/opengl_gal.cpp b/common/gal/opengl/opengl_gal.cpp
index 7f63b79bea..d01a90a426 100644
--- a/common/gal/opengl/opengl_gal.cpp
+++ b/common/gal/opengl/opengl_gal.cpp
@@ -31,6 +31,7 @@
 
 #include <wx/log.h>
 #include <macros.h>
+#include <confirm.h>
 #ifdef __WXDEBUG__
 #include <profile.h>
 #endif /* __WXDEBUG__ */
@@ -93,7 +94,8 @@ OPENGL_GAL::OPENGL_GAL( wxWindow* aParent, wxEvtHandler* aMouseListener,
 
     if( tesselator == NULL )
     {
-        wxLogFatalError( wxT( "Could not create the tesselator" ) );
+        DisplayError( parentWindow, wxT( "Could not create the tesselator" ) );
+        exit( 1 );
     }
 
     gluTessProperty( tesselator, GLU_TESS_WINDING_RULE, GLU_TESS_WINDING_POSITIVE );
@@ -144,13 +146,22 @@ void OPENGL_GAL::BeginDrawing()
     if( !isShaderInitialized )
     {
         if( !shader.LoadBuiltinShader( 0, SHADER_TYPE_VERTEX ) )
-            wxLogFatalError( wxT( "Cannot compile vertex shader!" ) );
+        {
+            DisplayError( parentWindow, wxT( "Cannot compile vertex shader!" ) );
+            exit( 1 );
+        }
 
         if( !shader.LoadBuiltinShader( 1, SHADER_TYPE_FRAGMENT ) )
-            wxLogFatalError( wxT( "Cannot compile fragment shader!" ) );
+        {
+            DisplayError( parentWindow, wxT( "Cannot compile fragment shader!" ) );
+            exit( 1 );
+        }
 
         if( !shader.Link() )
-            wxLogFatalError( wxT( "Cannot link the shaders!" ) );
+        {
+            DisplayError( parentWindow, wxT( "Cannot link the shaders!" ) );
+            exit( 1 );
+        }
 
         // Make VBOs use shaders
         cachedManager.SetShader( shader );
@@ -915,7 +926,7 @@ void OPENGL_GAL::initGlew()
 
     if( GLEW_OK != err )
     {
-        wxLogError( wxString::FromUTF8( (char*) glewGetErrorString( err ) ) );
+        DisplayError( parentWindow, wxString::FromUTF8( (char*) glewGetErrorString( err ) ) );
         exit( 1 );
     }
     else
@@ -931,21 +942,21 @@ void OPENGL_GAL::initGlew()
     }
     else
     {
-        wxLogError( wxT( "OpenGL Version 2.1 is not supported!" ) );
+        DisplayError( parentWindow, wxT( "OpenGL Version 2.1 is not supported!" ) );
         exit( 1 );
     }
 
     // Framebuffers have to be supported
     if( !GLEW_EXT_framebuffer_object )
     {
-        wxLogError( wxT( "Framebuffer objects are not supported!" ) );
+        DisplayError( parentWindow, wxT( "Framebuffer objects are not supported!" ) );
         exit( 1 );
     }
 
     // Vertex buffer have to be supported
     if( !GLEW_ARB_vertex_buffer_object )
     {
-        wxLogError( wxT( "Vertex buffer objects are not supported!" ) );
+        DisplayError( parentWindow, wxT( "Vertex buffer objects are not supported!" ) );
         exit( 1 );
     }
 
@@ -1040,10 +1051,12 @@ void CALLBACK EdgeCallback( GLboolean aEdgeFlag )
 
 void CALLBACK ErrorCallback( GLenum aErrorCode )
 {
-    const GLubyte* estring;
+    const GLubyte* eString = gluErrorString( aErrorCode );
 
-    estring = gluErrorString( aErrorCode );
-    wxLogError( wxT( "Tessellation Error: %s" ), (char*) estring );
+    DisplayError( NULL, wxString( std::string( "Tessellation error: " ) +
+            std::string( (const char*)( eString ) ) ) );
+
+    exit( 1 );
 }
 
 
diff --git a/common/gal/opengl/shader.cpp b/common/gal/opengl/shader.cpp
index bddd40ca4c..6210776300 100644
--- a/common/gal/opengl/shader.cpp
+++ b/common/gal/opengl/shader.cpp
@@ -30,6 +30,8 @@
 #include <fstream>
 
 #include <wx/log.h>
+#include <wx/gdicmn.h>
+#include <confirm.h>
 
 #include <gal/opengl/shader.h>
 #include "shader_src.h"
@@ -201,7 +203,7 @@ std::string SHADER::readSource( std::string aShaderSourceName )
 
     if( !inputFile )
     {
-        wxLogError( wxString::FromUTF8( "Can't read the shader source: " ) +
+        DisplayError( NULL, wxString::FromUTF8( "Can't read the shader source: " ) +
                     wxString( aShaderSourceName.c_str(), wxConvUTF8 ) );
         exit( 1 );
     }
@@ -223,7 +225,7 @@ bool SHADER::addSource( const std::string& aShaderSource, SHADER_TYPE aShaderTyp
 {
     if( isShaderLinked )
     {
-        wxLogError( wxString::FromUTF8( "Shader is already linked!" ) );
+        wxLogDebug( wxT( "Shader is already linked!" ) );
     }
 
     // Create the program
@@ -259,7 +261,7 @@ bool SHADER::addSource( const std::string& aShaderSource, SHADER_TYPE aShaderTyp
 
     if( status != GL_TRUE )
     {
-        wxLogError( wxT( "Shader compilation error" ) );
+        DisplayError( NULL, wxT( "Shader compilation error" ) );
 
         shaderInfo( shaderNumber );
 
diff --git a/common/gal/opengl/vertex_manager.cpp b/common/gal/opengl/vertex_manager.cpp
index 78179c8200..e98df99fe8 100644
--- a/common/gal/opengl/vertex_manager.cpp
+++ b/common/gal/opengl/vertex_manager.cpp
@@ -33,6 +33,7 @@
 #include <gal/opengl/noncached_container.h>
 #include <gal/opengl/gpu_manager.h>
 #include <gal/opengl/vertex_item.h>
+#include <confirm.h>
 
 using namespace KIGFX;
 
@@ -55,7 +56,7 @@ void VERTEX_MANAGER::Vertex( GLfloat aX, GLfloat aY, GLfloat aZ ) const
 
     if( newVertex == NULL )
     {
-        wxLogError( wxT( "Vertex allocation error" ) );
+        DisplayError( NULL, wxT( "Vertex allocation error" ) );
         return;
     }
 
@@ -70,7 +71,7 @@ void VERTEX_MANAGER::Vertices( const VERTEX aVertices[], unsigned int aSize ) co
 
     if( newVertex == NULL )
     {
-        wxLogError( wxT( "Vertex allocation error" ) );
+        DisplayError( NULL, wxT( "Vertex allocation error" ) );
         return;
     }
 
diff --git a/common/tool/tool_manager.cpp b/common/tool/tool_manager.cpp
index 02019f25ef..a2534c0623 100644
--- a/common/tool/tool_manager.cpp
+++ b/common/tool/tool_manager.cpp
@@ -43,6 +43,7 @@
 #include <tool/action_manager.h>
 
 #include <wxPcbStruct.h>
+#include <confirm.h>
 #include <class_drawpanel_gal.h>
 
 using boost::optional;
@@ -136,11 +137,10 @@ void TOOL_MANAGER::RegisterTool( TOOL_BASE* aTool )
 
     if( aTool->GetType() == INTERACTIVE )
     {
-        bool initState = static_cast<TOOL_INTERACTIVE*>( aTool )->Init();
-
-        if( !initState )
+        if( !static_cast<TOOL_INTERACTIVE*>( aTool )->Init() )
         {
-            wxLogError( wxT( "Initialization of the %s tool failed" ), aTool->GetName().c_str() );
+            DisplayError( NULL, wxString( std::string( "Initialization of the %s tool failed" ) +
+                                            aTool->GetName() ) );
 
             // Unregister the tool
             m_toolState.erase( aTool );
diff --git a/include/class_drawpanel_gal.h b/include/class_drawpanel_gal.h
index cba546afd4..dd52d406b8 100644
--- a/include/class_drawpanel_gal.h
+++ b/include/class_drawpanel_gal.h
@@ -121,18 +121,35 @@ protected:
 
     static const int MinRefreshPeriod = 17;             ///< 60 FPS.
 
-    wxLongLong               m_lastRefresh;      ///< Last time the panel was refreshed
+    ///< Last timestamp when the panel was refreshed
+    wxLongLong               m_lastRefresh;
+
+    ///< Is there a redraw event requested?
     bool                     m_pendingRefresh;
+
+    ///< True if GAL is currently redrawing the view
+    bool                     m_drawing;
+
+    ///< Timer responsible for preventing too frequent refresh
     wxTimer                  m_refreshTimer;
 
-    KIGFX::GAL*              m_gal;              ///< Interface for drawing objects on a 2D-surface
-    KIGFX::VIEW*             m_view;             ///< Stores view settings (scale, center, etc.)
-                                                 ///< and items to be drawn
-    KIGFX::PAINTER*          m_painter;          ///< Contains information about how to draw items
-                                                 ///< using GAL
-    KIGFX::WX_VIEW_CONTROLS* m_viewControls;     ///< Control for VIEW (moving, zooming, etc.)
-    GalType                  m_currentGal;       ///< Currently used GAL
-    TOOL_DISPATCHER*         m_eventDispatcher;  ///< Processes and forwards events to tools
+    ///< Interface for drawing objects on a 2D-surface
+    KIGFX::GAL*              m_gal;
+
+    ///< Stores view settings (scale, center, etc.) and items to be drawn
+    KIGFX::VIEW*             m_view;
+
+    ///< Contains information about how to draw items using GAL
+    KIGFX::PAINTER*          m_painter;
+
+    ///< Control for VIEW (moving, zooming, etc.)
+    KIGFX::WX_VIEW_CONTROLS* m_viewControls;
+
+    ///< Currently used GAL
+    GalType                  m_currentGal;
+
+    ///< Processes and forwards events to tools
+    TOOL_DISPATCHER*         m_eventDispatcher;
 };
 
 #endif
diff --git a/pcbnew/tools/move_tool.cpp b/pcbnew/tools/move_tool.cpp
index 6eaea40418..6750d3e8fd 100644
--- a/pcbnew/tools/move_tool.cpp
+++ b/pcbnew/tools/move_tool.cpp
@@ -26,6 +26,7 @@
 #include <class_module.h>
 #include <tool/tool_manager.h>
 #include <view/view_controls.h>
+#include <confirm.h>
 
 #include "common_actions.h"
 #include "selection_tool.h"
@@ -68,7 +69,7 @@ bool MOVE_TOOL::Init()
     }
     else
     {
-        wxLogError( wxT( "pcbnew.InteractiveSelection tool is not available" ) );
+        DisplayError( NULL, wxT( "pcbnew.InteractiveSelection tool is not available" ) );
         return false;
     }