[Zope] Broke my Zope with external editor

Silly mistake... I hit Restart on my Zope control panel while I still had something open in an external editor session. Now I cannot restart Zope, and it is not logging anything. Is there a lock I need to clear, where do I look and how can I tell what is stopping the service from restarting ? Thanx -- Les Ferguson Software developer Waitakere, NZ