--- a/Viewer.py	Wed Sep 17 07:35:19 2008 +0200
+++ b/Viewer.py	Wed Sep 17 14:26:01 2008 +0200
@@ -1883,6 +1883,7 @@
                       "inputs" : block.GetInputTypes(), 
                       "executionControl" : block.GetExecutionControl(), 
                       "executionOrder" : block.GetExecutionOrder()}
+        print old_values
         dialog.SetValues(old_values)
         if dialog.ShowModal() == wx.ID_OK:
             new_values = dialog.GetValues()