diff -r 35046bc74554 -r fb9799a0c0f7 controls/DebugVariablePanel/DebugVariableGraphicViewer.py
--- a/controls/DebugVariablePanel/DebugVariableGraphicViewer.py	Fri May 31 14:22:15 2013 +0200
+++ b/controls/DebugVariablePanel/DebugVariableGraphicViewer.py	Fri May 31 18:32:51 2013 +0200
@@ -87,7 +87,7 @@
         try:
             values = eval(data)
             if not isinstance(values, TupleType):
-                raise
+                raise ValueError
         except:
             message = _("Invalid value \"%s\" for debug variable")%data
             values = None
@@ -609,8 +609,8 @@
                 self.GraphType = GRAPH_PARALLEL
             self.ResetGraphics()
     
-    def UnsubscribeObsoleteData(self):
-        DebugVariableViewer.UnsubscribeObsoleteData(self)
+    def SubscribeAllDataConsumers(self):
+        DebugVariableViewer.SubscribeAllDataConsumers(self)
         if not self.ItemsIsEmpty():
             self.ResetGraphics()