[Zope] zope hangs

Since i upgraded to redhat 9.0 ive noticed that zope hangs a lot. It will accept a connection but never sends a response. Restarting zope fixes the problem for an undetermined time. Sometimes it'll stay sane for a long time, other times 1 or 2 requests later it hangs. I dont know if its redhat 9 related, but only since upgrading has this happened. Has anyone else seen this?