I recently took the site I have been developing online and have been beta testing with several users. I have a problem which is preventing a user from viewing his home page; any attempt I make to isolate the problem hangs Zope, stops anyone accessing my site, and requires a forced unix kill. The user's page is: http://rsphysse.anu.edu.au/optics/people/jdl124 Users are implemented as a Person ZClass. One of their contained objects is a PublicationFolder ZClass, itself a container class for Journal ZClass instances. So above: optics (folder) people (folder) jdl124 (Person) publications (PublicationFolder) article1 (Journal) article2 (Journal) . . article69 (Journal) jdl124's home page is dying when it tries to iterate over the results from a search of the ZCatalog publicationCatalog. <!-- Error type: KeyError Error value: 384 --> Traceback (innermost last): File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/ZPublisher/Publish.py, line 2 14, in publish_module File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/ZPublisher/Publish.py, line 179, in publish File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: jdl124) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/ZPublisher/Publish.py, line 165, in publish File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: index_html) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: index_html) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: index_html) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: index_html) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/DocumentTemplate/DT_Util.py, line 335, in eval (Object: publicationCatalog.recentPublications(_.None,_,FirstName=FirstName,LastName=LastName)) (Info: FirstName) File <string>, line 0, in ? File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: recentPublications) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: recentPublications) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/DocumentTemplate/DT_In.py, line 493, in renderwb (Object: publist) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/DocumentTemplate/DT_In.py, line 710, in sort_sequence (Object: publist) File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/Products/ZCatalog/Lazy.py, line 190, in __getitem__ File /tmp_mnt/users/optics/www124/Zope-2.1.4-src/lib/python/Products/ZCatalog/Catalog.py, line 181, in __getitem__ KeyError: (see above) The problem isn't in the publicationCatalog however, the following DTML snippet locks up my Zope completely: <dtml-with jdl124> <dtml-with publications> <dtml-in "objectValues()"> <dtml-var id><br> </dtml-in> </dtml-with> </dtml-with> I can deal with this during solo testing but my users' budding confidence in the system I have created has been mildly rocked by this situation. Needless to say, jdl124 is none too impressed. Any help you can offer is most appreciated. Cheers, Darran.