So, perhaps I'm stupid. I created a new ZClass and set its base class to File. I did think because I wanted to create a ManagedDocument that's like a File but also keep track of a bunch of additional (dumb) metadata (like Status, Author, etc.) I added these items to a new property sheet, but now I don't seem to be able to create any instances of this new object. When I do, I'm prompted for the id for the new object, but then get an error about 'title' being undefined. So maybe I'm stupid; or maybe it's late. Is there some reason why subclassing File should be less-straightforward than just creating a vanilla ZClass without any base class (which works fine for me)? Thanks, David ___________________________________________________________ David Ornstein, CTO, NuvoMedia, Inc. AIM: dbo666 voice: 650-314-1200 web: http://www.nuvomedia.com/ PGP Public Key Available at: ldap://certserver.pgp.com "An honest man is able to speak for himself, when a knave is not." Shakespeare, King Henry VI., Part 2 _______________________________________________ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )