[Zope] FCGIServer broken pipe on Zope 2.8.1?

Any suggestions as to what is causing this kind of problem? I've never seen this in our environment on Zope 2.7.x - it just started after a fresh install of 2.8.1. i386 Linux, Py 2.3.5, Zope 2.8.1, plone 2.1 --- ERROR ZServer uncaptured python exception, closing channel <ZServer.FCGIServer.FCGIChannel connected '' at 0xb3d34f2c> (socket.error:(32, 'Broken pipe') [/home/.../zope/python/2.3.5/lib/python2.3/asynchat.py|initiate_send|218] [/home/.../zope/python/2.3.5/lib/python2.3/asyncore.py|send|337]) --- Thanks, Petri