--- a/controls/DebugVariablePanel.py	Wed May 08 23:31:12 2013 +0200
+++ b/controls/DebugVariablePanel.py	Thu May 09 09:00:24 2013 +0200
@@ -553,12 +553,12 @@
         
         def UnregisterObsoleteData(self):
             for item in self.Items[:]:
-                iec_path = item.GetVariable().upper()
+                iec_path = item.GetVariable()
                 if self.ParentWindow.GetDataType(iec_path) is None:
                     self.ParentWindow.RemoveDataConsumer(item)
                     self.RemoveItem(item)
                 else:
-                    self.ParentWindow.AddDataConsumer(iec_path, item)
+                    self.ParentWindow.AddDataConsumer(iec_path.upper(), item)
                     item.RefreshVariableType()
             
         def ResetData(self):
@@ -700,12 +700,12 @@
             event.Skip()
         
         def ForceValue(self, item):
-            iec_path = item.GetVariable().upper()
+            iec_path = item.GetVariable()
             iec_type = self.ParentWindow.GetDataType(iec_path)
             if iec_type is not None:
                 dialog = ForceVariableDialog(self, iec_type, str(item.GetValue()))
                 if dialog.ShowModal() == wx.ID_OK:
-                    self.ParentWindow.ForceDataValue(iec_path, dialog.GetValue())
+                    self.ParentWindow.ForceDataValue(iec_path.upper(), dialog.GetValue())
         
         def ReleaseValue(self, item):
             iec_path = item.GetVariable().upper()
@@ -1832,12 +1832,12 @@
             items = [(idx, item) for idx, item in enumerate(self.Table.GetData())]
             items.reverse()
             for idx, item in items:
-                iec_path = item.GetVariable().upper()
+                iec_path = item.GetVariable()
                 if self.GetDataType(iec_path) is None:
                     self.RemoveDataConsumer(item)
                     self.Table.RemoveItem(idx)
                 else:
-                    self.AddDataConsumer(iec_path, item)
+                    self.AddDataConsumer(iec_path.upper(), item)
                     item.RefreshVariableType()
             self.Freeze()
             self.Table.ResetView(self.VariablesGrid)
@@ -1893,7 +1893,7 @@
             if iec_type is not None:
                 dialog = ForceVariableDialog(self, iec_type, str(item.GetValue()))
                 if dialog.ShowModal() == wx.ID_OK:
-                    self.ForceDataValue(iec_path, dialog.GetValue())
+                    self.ForceDataValue(iec_path.upper(), dialog.GetValue())
         return ForceVariableFunction
 
     def GetReleaseVariableMenuFunction(self, iec_path):

--- a/graphics/GraphicCommons.py	Wed May 08 23:31:12 2013 +0200
+++ b/graphics/GraphicCommons.py	Thu May 09 09:00:24 2013 +0200
@@ -358,10 +358,13 @@
     
     def GetDataType(self, iec_path):
         if self.DataProducer is not None:
+            data_type = self.DataProducer.GetDebugIECVariableType(iec_path.upper())
+            if data_type is not None:
+                return data_type
+            
             infos = self.DataProducer.GetInstanceInfos(iec_path)
             if infos is not None:
                 return infos["type"]
-            return self.DataProducer.GetDebugIECVariableType(iec_path.upper())
         return None
     
     def IsNumType(self, data_type):