[Zope] Upgrading to Zope 2.5 database problems

[J.C.Mcnulty@open.ac.uk]

Hi all,

Has anyone had problems when upgrading to Zope 2.5? I did exactly what I
normally do when upgrading the product, but when I copy the database across
and try to run Zope it stops itself after approximately 10 seconds. I can
import the portals to the database created by the install and that runs OK
but then all the dates are incorrect. I am currently running Zope 2.4.3.

Spec: 
CMF 1.2
Python 2.1.1

Many Thanks

James