--- a/dialogs/ActionBlockDialog.py	Wed Sep 05 11:19:27 2012 +0200
+++ b/dialogs/ActionBlockDialog.py	Wed Sep 05 11:20:53 2012 +0200
@@ -145,7 +145,7 @@
             setattr(self, name, button)
             top_sizer.AddWindow(button)
         
-        self.ActionsGrid = CustomGrid(self, style=wx.VSCROLL)
+        self.ActionsGrid = CustomGrid(self, size=wx.Size(0, 0), style=wx.VSCROLL)
         self.ActionsGrid.DisableDragGridSize()
         self.ActionsGrid.EnableScrolling(False, True)
         self.ActionsGrid.Bind(wx.grid.EVT_GRID_CELL_CHANGE,