Hi! I'm having a similar problem, but I don't even get the objects in the Catalog. I must click on Find Objects. And yes, I created the ZClass with CatalogAware Base... (Zope 2.3.0 binary release, python 1.5.2, linux2-x86) Thanks for any help. Gari _________________________________________________________ Aurki Euskara hutsezko bilatzailea http://www.aurki.com Zure laguntza behar dugu. Egin zaitez editore!