Chris Following behaviour was observed Time Action Behaviour 1 A on Machine 1 accesses site Fine 2 B on Machine 2 Error A on Machine 1 Error B on Machine 2 Fine 3 C on Machine 3 Fine C on Machine 3 Error All these errors pertain to the python script in the ZPT pages. Meaning no logic. Just temperamental I got to know that python 2.2 has some issues with Zope. At this moment I am installing python 2.1.3. I will compile all that is required with python 2.1.3 and see what happens. Hope it will be okay with python 2.1.3 Regards, Chetan