[Zope] Attrib exceptions and None objects under heavy load?

I think I have (sort of) figured out the cause of my problem. I'm getting general acquisition strangeness when polling a folder from a thread (see my post titled Polling a Folder). I have a small product and zexp that I have compiled that reproduces my problem. Anybody interested to look at this (it may be a Zope bug, or - more likely - me doing something I shouldn't) Etienne For those following the "Etienne Posting in HTML saga", I'm now using Outlook Express and at least that seems to LISTEN when I tell it to do a Plain Text Post (by saying this, it will probably spite me and post in HTML again)