First of all, thanks for your patience for reading this long post.......I posted it a while ago but had no replies so am trying again...... Our development site has approx the following structure: index_html - About | Guided Tour | Machine - Jobs - Beamlines - Machine | Parameters etc Inside each folder is a contents_html document. The index_html is at the root and displays this content under a generic banner with drop down menus (Javascript) with links to the top level folders and their subfolders. Local navigation is generated via a treemenu in each top level folder with the name attribute as the id of the top level folder, and which generates absolute_urls. However we get the following error when clicking a link in the treemenu, to http://mysite/About/GuidedTour Error Type: KeyError Error Value: Parameters Traceback (innermost last): File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 150, in publish_module File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 114, in publish File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/Zope/__init__.py, line 158, in zpublisher_exception_hook (Object: GuidedTour) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 98, in publish File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/mapply.py, line 88, in mapply (Object: index_html) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/ZPublisher/Publish.py, line 39, in call_object (Object: index_html) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/OFS/DTMLMethod.py, line 127, in __call__ (Object: index_html) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_String.py, line 473, in __call__ (Object: index_html) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/OFS/DTMLMethod.py, line 120, in __call__ (Object: javascript) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_String.py, line 473, in __call__ (Object: javascript) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_With.py, line 76, in render (Object: Machine) File /zope/Zope-2.5.0-solaris-2.6-sparc/lib/python/DocumentTemplate/DT_With.py, line 60, in render (Object: Parameters) KeyError: (see above) I presume that Zope moves up to the root to pick up the index_html then moves back down until it finds the first "Machine" folder, which is not the one we want then raises an error. Does this mean that in Zope no two folders can have the same id? This would cause problems when our contributors edit their parts of our site. Is there a way around this other than naming the folders differently? TIA Marie Robichon Web Task Force European Synchrotron Radiation Facility Grenoble France