diff -r 35046bc74554 -r fb9799a0c0f7 IDEFrame.py
--- a/IDEFrame.py	Fri May 31 14:22:15 2013 +0200
+++ b/IDEFrame.py	Fri May 31 18:32:51 2013 +0200
@@ -2027,7 +2027,7 @@
                         editor.SubscribeAllDataConsumers()
                 elif editor.IsDebugging():
                     editor.SubscribeAllDataConsumers()
-            self.DebugVariablePanel.UnsubscribeObsoleteData()
+            self.DebugVariablePanel.SubscribeAllDataConsumers()
     
     def AddDebugVariable(self, iec_path, force=False):
         if self.EnableDebug: