Index: trunk/web/validation.py
===================================================================
--- trunk/web/validation.py	(revision 250)
+++ trunk/web/validation.py	(revision 251)
@@ -40,5 +40,5 @@
     if not on:
         return MAX_MEMORY_SINGLE
-    if machine.memory > MAX_MEMORY_SINGLE:
+    if machine is not None and machine.memory > MAX_MEMORY_SINGLE:
         # If they've been blessed, let them have it
         return machine.memory