Tru,
If you are good at VBA, check Access 2002 Power Programming by Scott Barker
for a detailed discussion of how to log errors including identifying the
modules, e.g. forms where they occur, the active control, user's name,
computer name, date/time, etc. One section also discusses logging errors to
the back end and front end of your application.
Starts on page 163.
LDN