Hi! I am having a problem with Zope after upgrading to v2.4.0, and I am not exactly sure when it started to crop up... but I am getting AttributeError exceptions whenever I attempt to Add or View any of the following objects: Accelerated HTTP Cache Manager External Method Mail Host RAM Cache Manager Script (Python) Site Access Rule SiteRoot Virtual Host Monster Vocabulary Z SQL Method Z Catalog Zope Tutorial Other objects add/view/manage just fine. For each of these AttributeError exceptions, I get a similar stack trace where it choked in line 241 in python/App/special_dtml.py (see below). Does this error look obvious to anybody? For what it is worth, I may not have upgraded correctly. I know I have fiddled with permission settings after running ./install (docs recommend not to launch as root, but I run it on port 80); and I also just copied the Data.fs* files from my prior Zope-2.3 tree into my Zope-2.4 tree... without running any type of converter utility on it. Finally, I installed the ZPT products (Page Templates, ZTUtils, TAL) latest version I think. Any ideas? Mike Error Type: AttributeError Error Value: _v_blocks Traceback (innermost last): File /opt/Zope-2.4.0-linux2-x86/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /opt/Zope-2.4.0-linux2-x86/lib/python/ZPublisher/Publish.py, line 187, in publish File /opt/Zope-2.4.0-linux2-x86/lib/python/Zope/__init__.py, line 226, in zpublisher_exception_hook File /opt/Zope-2.4.0-linux2-x86/lib/python/ZPublisher/Publish.py, line 171, in publish File /opt/Zope-2.4.0-linux2-x86/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: pyScriptAdd) File /opt/Zope-2.4.0-linux2-x86/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: pyScriptAdd) File /opt/Zope-2.4.0-linux2-x86/lib/python/Shared/DC/Scripts/Bindings.py, line 324, in __call__ (Object: pyScriptAdd) File /opt/Zope-2.4.0-linux2-x86/lib/python/Shared/DC/Scripts/Bindings.py, line 354, in _bindAndExec (Object: pyScriptAdd) File /opt/Zope-2.4.0-linux2-x86/lib/python/App/special_dtml.py, line 241, in _exec (Object: pyScriptAdd) AttributeError: (see above)