diff -r b40ef1010140 -r 330f578e228d dialogs/FBDBlockDialog.py
--- a/dialogs/FBDBlockDialog.py	Mon Aug 13 10:41:27 2012 +0200
+++ b/dialogs/FBDBlockDialog.py	Sun Aug 19 16:02:12 2012 +0200
@@ -114,7 +114,7 @@
         right_gridsizer.AddWindow(self.Preview, flag=wx.GROW)
         
         button_sizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)
-        self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())
+        #self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())
         main_sizer.AddSizer(button_sizer, border=20, 
               flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)
         
@@ -134,6 +134,9 @@
         
         self.LibraryPanel.SetFocus()
     
+    def __del__(self):
+        self.Controller = None
+    
     def SetBlockList(self, blocklist):
         self.LibraryPanel.SetBlockList(blocklist)