Greetings, I recently upgraded from Zope 2.8.7 to 2.11.0. After working out some issues, everything worked OK for a couple weeks. There were minor page template issues, but they weren't stopping the pages from rendering. Then our server locked up..we had to reboot it. When I got everything back up I get this error: 2008-07-14T11:45:50 ERROR Zope.SiteErrorLog http://dev.bearcatproducts.com:9280/zzz-v2/public/ope/index.html Traceback (innermost last): Module ZPublisher.Publish, line 119, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 42, in call_object Module Shared.DC.Scripts.Bindings, line 313, in __call__ Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec Module Products.PageTemplates.ZopePageTemplate, line 330, in _exec Module Products.PageTemplates.ZopePageTemplate, line 428, in pt_render AssertionError In all page templates, ported and new. I am running two Zeo servers built from the same base install, and the clients are all built from that install as well. Any clues to what's going on? TIA. Regards, -- Jeffrey D Peterson Webmaster Crary Industries, Inc.