I am a zope newbie and I have downloaded Xen to try. I realise it is no longer being developed but has anyone got it to work with Zope2.2.4? Whatever I try and open it gives me the following error message: AttributeError Sorry, a Zope error occurred. Traceback (innermost last): File /usr/local/Zope224/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /usr/local/Zope224/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/Zope224/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: Traversable) File /usr/local/Zope224/lib/python/ZPublisher/Publish.py, line 162, in publish File /usr/local/Zope224/lib/python/ZPublisher/BaseRequest.py, line 442, in traverse File /usr/local/Zope224/lib/python/Products/XUserFolder/GenericUserFolder.py, line 457, in validate (Object: Traversable) File /usr/local/Zope224/lib/python/Products/XUserFolder/GenericUserFolder.py, line 408, in _cookie_validate (Object: Traversable) File /usr/local/Zope224/lib/python/Products/XUserFolder/GenericUserFolder.py, line 258, in _recurse_validate (Object: Traversable) AttributeError: 'None' object has no attribute 'authenticate' Any ideas? Guy