[Zope] more catalog issues

Strange... Now my 2.2 catalog is giving me the problems were supposed to be bugs in zope (catalog) 2.1.5 and lower... Inconsistancy, and missing indexes...??? When I update the catalog it corrects itself. hmmmm Any clues as to why my objects get cataloged incorrectly to start with? Is there a better syntax to use than 'catalog_object()'? Thanks for any pointers! -e-