--- kicad/common/drawpanel.cpp	2010-08-13 15:15:02.000000000 +0200
+++ kicad_new/common/drawpanel.cpp	2010-08-13 15:04:14.000000000 +0200
@@ -27,7 +27,11 @@
 #define DEBUG_SHOW_CLIP_RECT       0  // Set to 1 to draw clipping rectangle.
 #define DEBUG_DUMP_CLIP_COORDS     0  // Set to 1 to dump clipping rectangle coordinates.
 #define DEBUG_DUMP_SCROLL_SETTINGS 0  // Set to 1 to dump scroll settings.
+#define DEBUG_BLOCKS               0  // Set to 1 to dump block information
 
+/* Definitions for workarounds in drawpanel.cpp */
+#define FLUXBOX_WORKAROUND         1  // Set to 1 to enable group/block actions on fluxbox, windowmaker, fvwm and probably others
+                                      // with this, we ignore mouse entering events if the left button is pressed
 
 /* Used to inhibit a response to a mouse left button release, after a
  * double click (when releasing the left button at the end of the second
@@ -1042,8 +1046,21 @@ void WinEDA_DrawPanel::OnMouseEvent( wxM
      * MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND in order to avoid spurious block
      * commands. */
     static int MinDragEventCount;
+#if DEBUG_BLOCKS
+        std::cout << "Left button pressed: " << event.LeftDown() << " Middle button pressed: " << event.MiddleDown() << std::endl
+                << "Left button down: " << event.LeftIsDown() << "Middle Button down: " << event.MiddleIsDown() << std::endl
+                << "event.Leaving: " << event.Leaving() << " event.Entering:" << event.Entering() << " Can start block: " << m_CanStartBlock << std::endl << std::endl;
+#endif
     if( event.Leaving() || event.Entering() )
     {
+#if FLUXBOX_WORKAROUND
+        // when using fluxbox (and probably windowmaker, fwvm) we get two events on a mouse left click. Ignore the entering event in this case.
+        // (there won't be an event on entering until we release the left mouse button anyway)
+        if(event.LeftIsDown())
+        {
+            return;
+        }
+#endif
         m_CanStartBlock = -1;
     }