--- a/UI/UserInterface.py	Sun Dec 19 19:53:48 2010 +0100
+++ b/UI/UserInterface.py	Wed Dec 22 17:32:24 2010 +0100
@@ -5609,7 +5609,10 @@
         """
         if Version.startswith("@@"):
             # development version, always newer
-            return True
+            if required.endswith(".99"):
+                return False
+            else:
+                return True
         
         if "-snapshot-" in Version:
             # check snapshot version