So far Principia products have only been written by experienced developers, but with random bozos messing around with buggy partially-implemented Products, the management code is going to have to be made more resilient against bad objects. Here's an example traceback I got: Sorry, an error occurred. Traceback (innermost last): File /home/opt/zope/lib/python/ZPublisher/Publish.py, line 861, in publish_module File /home/opt/zope/lib/python/ZPublisher/Publish.py, line 583, in publish (Info: /manage_main) File /home/opt/zope/lib/python/Globals.py, line 222, in __call__ (Object: manage_main) File /home/opt/zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: manage_main) File /home/opt/zope/lib/python/DocumentTemplate/DT_In.py, line 675, in renderwob (Object: objectItems) File /home/opt/zope/lib/python/OFS/SimpleItem.py, line 144, in title_and_id (Object: Item) AttributeError: id The problem in this case arose from a syntax error in the code for the product, which made the module import fail. When I changed title_and_id(self) to: t=self.title try: i=self.id except AttributeError: i="No ID!" + repr(self) return t and ("%s (%s)" % (t,i)) or i Zope correctly displayed that this object was broken. I'm not sure if this suggested change is the right one, but it worked for me... -- A.M. Kuchling http://starship.skyport.net/crew/amk/ You have called me here, Haroun. It is unwise to summon what you cannot dismiss. -- Dream, in SANDMAN #50: "Ramadan"