When trying to install ZUBB product (I've tried versions ZDiscussions-0.6.0 and 0.7.1 with the same result) I seem to be able to install the product correctly, but when attempting to create an instance of ZDiscussion Topic (after entering ID and Title) I get the following error: Site Error An error was encountered while publishing this resource. NameError Sorry, a site error occurred. Traceback (innermost last): File C:\PROGRA~1\Zope1\lib\python\ZPublisher\Publish.py, line 223, in publish_module File C:\PROGRA~1\Zope1\lib\python\ZPublisher\Publish.py, line 187, in publish File C:\PROGRA~1\Zope1\lib\python\Zope\__init__.py, line 226, in zpublisher_exception_hook (Object: ZDTopic_factory) File C:\PROGRA~1\Zope1\lib\python\ZPublisher\Publish.py, line 171, in publish File C:\PROGRA~1\Zope1\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: ZDTopic_add) File C:\PROGRA~1\Zope1\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: ZDTopic_add) File C:\PROGRA~1\Zope1\lib\python\OFS\DTMLDocument.py, line 199, in __call__ (Object: ZDTopic_add) File C:\PROGRA~1\Zope1\lib\python\DocumentTemplate\DT_String.py, line 546, in __call__ (Object: ZDTopic_add) File C:\PROGRA~1\Zope1\lib\python\DocumentTemplate\DT_With.py, line 133, in render (Object: ZDTopic.createInObjectManager(REQUEST['id'], REQUEST)) File C:\PROGRA~1\Zope1\lib\python\DocumentTemplate\DT_Util.py, line 231, in eval (Object: ZDTopic.createInObjectManager(REQUEST['id'], REQUEST)) (Info: REQUEST) File <string>, line 2, in f (Object: guarded_getitem) NameError: global name 'ZDTopic' is not defined I would appreciate any suggestion to as what happens and how to fix it. I run Zope 2.4.3 on win32 platform. Many thanks for you help, Agata