[Zope] Zope does not start completly

Hello there I' ve got some difficulties with the very final step of ZOPE-Installation: I made the start-script as root (-> python wo_pcgi.py) and got all the neccessary scripts. Then I chown and chgrp all files to my ZOPE-user and tried to start up the server. Unfortunately the script has got some endless-loop or so and I have to break (Ctrl-C) in order to get my prompt and logout. I do have access to the server via WWW but only until I break the script. Do you know some hint? Thank you very much! Stef