[Zope] Python.exe application errors

Hi We have an application built using Zope which is working great except that we get python.exe crashes (generates application errors and terminates). The errors seem to occur randomly and are therefore hard to replicate. The application has quite a few external scripts which interact with the Windows API. The verions in use are show below :- Zope Version (Zope 2.5.1 (binary release, python 2.1, win32-x86), python 2.1.3, win32) Python Version 2.1.3 (#35, Apr 8 2002, 17:47:50) [MSC 32 bit (Intel)] System Platform win32 the actual platform is Win 2000 Prof SP2 Does anyone have any ideas or pointers as to how to start tracking this problem down ?? I have got the drwatson log file but it does'nt make much sense !! Thanks