--- a/dialogs/FBDBlockDialog.py	Wed Feb 15 00:29:02 2012 +0100
+++ b/dialogs/FBDBlockDialog.py	Wed Feb 15 00:30:02 2012 +0100
@@ -319,7 +319,6 @@
         return values
 
     def OnTypeTreeItemSelected(self, event):
-        self.BlockName.SetValue("")
         selected = event.GetItem()
         pydata = self.TypeTree.GetPyData(selected)
         if pydata["type"] != CATEGORY: