--- a/Dialogs.py	Fri Oct 05 18:00:25 2007 +0200
+++ b/Dialogs.py	Fri Oct 05 18:01:50 2007 +0200
@@ -118,7 +118,7 @@
             treestyle = wx.TR_HAS_BUTTONS|wx.TR_HIDE_ROOT|wx.TR_SINGLE|wx.SUNKEN_BORDER
         self.TypeTree = wx.TreeCtrl(id=ID_BLOCKPROPERTIESDIALOGTYPETREE,
               name='TypeTree', parent=self, pos=wx.Point(0, 0),
-              size=wx.Size(0, 0), style=wx.TR_HAS_BUTTONS|wx.TR_SINGLE|wx.SUNKEN_BORDER)
+              size=wx.Size(0, 0), style=treestyle)
         self.Bind(wx.EVT_TREE_SEL_CHANGED, self.OnTypeTreeItemSelected,
               id=ID_BLOCKPROPERTIESDIALOGTYPETREE)