Hi folks, This is one problem I've seen in the archives several times but with no answer/solution (that I could find, anyway) : - Created a new product (MyProduct) using the Control Panel/Products - Inside MyProduct : created a new ZClass (ClassA) based on ObjectManager. - Inside ClassA : created a new ZClass (ClassB) based on ObjectManager. - Added a new instance of ClassA to the Zope root using the 'add button' - Within this instance of ClassA, tried to add an instance of ClassB - Error "Resource not found" - Traceback : File D:\Zope\lib\python\ZPublisher\Publish.py, line 214, in publish_module File D:\Zope\lib\python\ZPublisher\Publish.py, line 179, in publish File D:\Zope\lib\python\Zope\__init__.py, line 201, in zpublisher_exception_hook (Object: RoleManager) File D:\Zope\lib\python\ZPublisher\Publish.py, line 151, in publish File D:\Zope\lib\python\ZPublisher\BaseRequest.py, line 426, in traverse File D:\Zope\lib\python\AccessControl\User.py, line 373, in validate (Object: RoleManager) File D:\Zope\lib\python\ZPublisher\HTTPResponse.py, line 510, in notFoundError NotFound: (see above) In fact, just how are the zope permissions objects used in this context ? I've looked at KmNews and even tried copying that (adding other objects to the Subobjects tab) but can't see what the key is, short of offering a sacrificial hedgehog to the zope gods. thanks for any help, chas