[Zope] <dtml-with> / <dtml-in> bug or mistake?

hi When I try somehting like this in a dtml-method: <dtml-with "projectxy.showContent.concepts"> <dtml-var template> </dtml-with> everything works fine. Also with <dtml-in>... When I instead try it like this (with <dtml-in> or <dtml-with>) with a folder which has a number in the id field, I recieve a syntax error! <dtml-with "projectxy.04templates.concepts"> <dtml-var template> </dtml-with> After removing the "", I recieve a Key Error: Error Type: KeyError Error Value: projectxy.04templates.concepts Is this a bug or a mistake of my own? regards ./simon