[Zope-dev] Error code 4?

I have been working on fixing our "Error code: 11" problems, however we also have about the same amount of "Error Code: 4" entries in our debug.log. Does anyone know what that is, and what I can do to clear that one up too? For the record we are running: Solaris 8 on a sparc Python 2.1.1 (compiled from source) Zope 2.4.2 (compiled from source) Thanks, Alex Kelly