Hi All. I have reported this earlier, but I missed to give in the trace-back. The Situation is the following: I can access a certain method (render) only when using the super-user account. I have two similiar render-methods in two very similiar ZClasses and I have set the permissions exactly alike. Rendering the one class is ok for non-super-users, but rendering the other one gives this: Zope Error Zope has encountered an error while publishing this resource. Unauthorized You are not authorized to access render. Traceback (innermost last): File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/ZPublisher/Publish.py, line 179, in publish File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/ZPublisher/Publish.py, line 165, in publish File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: index_html) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: index_html) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: index_html) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: index_html) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: navigation_tree) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: navigation_tree) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/TreeDisplay/TreeTag.py, line 154, in render (Object: a tree tag) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/TreeDisplay/TreeTag.py, line 245, in tpRender (Object: ElementWithAttributes) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/TreeDisplay/TreeTag.py, line 491, in tpRenderTABLE (Object: ElementWithAttributes) (Info: (['AAAAAAAABwY=', [['AAAAAAAADCI=', [['AAAAAAAAGSg=']]]]], {'url': 'tpURL', 'childless_decoration': '', 'id': 'tpId', 'branches_expr': <method Eval.eval of Eval instance at 868d7b0>, 'sort': 'id'}, [['AAAAAAAABwY=', [['AAAAAAAADCI=', [['AAAAAAAAGSg=']]]]]], [['AAAAAAAABwY=', [['AAAAAAAADCI=', [['AAAAAAAAGSg=']]]]]])) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/TreeDisplay/TreeTag.py, line 491, in tpRenderTABLE (Object: ElementWithAttributes) (Info: (['AAAAAAAADCI=', [['AAAAAAAAGSg=']]], {'url': 'tpURL', 'childless_decoration': '', 'id': 'tpId', 'branches_expr': <method Eval.eval of Eval instance at 868d7b0>, 'sort': 'id'}, [['AAAAAAAABwY=', [['AAAAAAAADCI=', [['AAAAAAAAGSg=']]]]]], [['AAAAAAAADCI=', [['AAAAAAAAGSg=']]]])) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/TreeDisplay/TreeTag.py, line 408, in tpRenderTABLE (Object: Renderable) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: render) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: render) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/DocumentTemplate/DT_With.py, line 148, in render (Object: _[absolute_url()[_.string.rfind(absolute_url()[:_.string.rfind(absolute_url(),'/')],'/')+1:_.string.rfind(absolute_url(),'/')]]) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/DocumentTemplate/DT_In.py, line 691, in renderwob (Object: Catalog(meta_type='material', zuordnung=title)) File /amnt/home/assen/Zope-2.1.1-linux2-x86/lib/python/DocumentTemplate/DT_With.py, line 148, in render (Object: resolve_url(Catalog.getpath(data_record_id_), REQUEST)) Unauthorized: (see above) The difference between the one object is, that it does not look up the elements in a Catalog. Any hints? Regards, Ingo.