I've been noticing these sorts of messages in a number of our server logs: 2001-03-26T12:56:19 ERROR(200) ZODB Couldn't load state for '\000\000\000\000\000\002\030\316' Traceback (innermost last): File /mnt/data/2/zope/2-2-4_base/lib/python/ZODB/Connection.py, line 443, in setstate AttributeError: 'None' object has no attribute 'load' I think I posted about it a while back, but I've started to notice that these only occur in applications where wer'e using the Core Session Tracking product. Given the low OID numbers, it does sound like it's something in the funky RAM based session that's not being found, but I may be talking rubbish ;-) Anyway, it occurs on Zope 2.2.4, 2.2.5, and 2.3.xbx. Do core session tracking bugs go in the collector or somewhere else? cheers, Chris