[Zope] Core Dump on ./start after system power out

Hello Recently a guy with an pick-axe dug through the mains supply outside our office block. Our server went down cold. After splicing, the server booted up fine. Only now, starting up zope (./start) results in a python core dump : Bad system call. As time is of the essence, I decided to scream for help while I'm trying to fix things myself. I'm about to delete all the .pid files in zopepath/var...can't really imagine it would help...any other bright ideas appreciated. Zope-2.3.0 Python 2.0 FreeBSD 3.5