[Zope] server stopping

Doing a little testing here... I have a simple dtml which reads a an oracle table and displays it's results. If I reload the document quickly (f5 on ie), the server stops responding. Note that this happens on zserver linux and windows. The message from the linux box looks like this: ERROR(200) ZServer uncaptured python exception, closing channel <zhttp_server listening :8080 at 81f0dc8> (exceptions.TypeError:unpack non-sequence [/usr/local/zope/Zope-2.0.1-linux2-x86/ZServer/medusa/asyncore.py|poll|59] [/usr/local/zope/Zope-2.0.1-linux2-x86/ZServer/medusa/asyncore.py|handle_rea d_event|285] [/usr/local/zope/Zope-2.0.1-linux2-x86/ZServer/medusa/http_server.py|handle_ accept|591])