Hi all, I've been trying to install EventFolder into a Zope 2.2.1 system. I've followed the instructions (I wouldn't be writing here if I hadn't! :) and keep getting an error message; Error type: Could not load oid ÷, pickled data in traceback info may contain clues Error value: None and the traceback... (Info: ('\000\000\000\000\000\000\015\367', '(cExtensionClass\012ExtensionClass\012q\001(U\014TrackerIssueq\002(cZ Classes.ZClass\012PersistentClass\012q\003cProducts.TrackerBase.Tracke rBase Now the thing is, I *do not have* TrackerBase.TrackerBase in my Products folder. To try and get rid of this error, I have deleted *all* the products in my Products Folder and restarted my server. The error message still comes up. I have packed the database and tried 'grep' 215 % grep -i trackerbase Data.fs Binary file Data.fs matches doh! I change my PYTHONHOME to point to a Zope 2.2.1 installation that a lot of servers use. The lib/python/Products directory there shows no TrackerBase there. No TrackerBase in the (local, ie server-specific) directory, Products, either. Can anyone give me a clue as to where to look for this errant Product? Tone ps *excellent* news about BDFL and his troupe joining DC! ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project http://nle.ncl.ac.uk/ The Medical School, Newcastle University Tel: +44 191 222 5116 A Zope list for UK HE/FE http://www.fmcc.org.uk/mailman/listinfo/zope