[Zope] Network hangs

Can anyone give me some clues as to where to look to diagnose network hangs? Case: Installed Zope today (2.2.0 - sorry, I'm conservative on version revs and typically hang back a couple) and ever since starting to move the site to Zope networking seems to hang... Apache sit's on port 80 w/all static pages Zope is now on port 8080 until the move is completed (then it becomes primary on 80). It's seems to me, to be related to ie5x but I'm not sure... I'll connect from a desktop machine to the zope.machine:8080 and then change to zope.machine:8080/manage, login and almost everytime within a minute or two it'll hang! Just not sure where to start debugging... Ideas? Rick