I'm dba for a new db (beta version) with User Level Security.  There is a
user who is working through this beta version who comes up with suggestions
for improvement, and/or logic errors.  The data tables sit on an SQL Server
and the 'front end' links to them.

After a recent modification to the db, the user can not access the db (which
is copied to a CD and then installed to her machine).  On her machine, I
can't open the db, but I can on mine (same file).  I've tried a 'Compact and
Repair Database...' without any luck.  When she (or I) click on her desktop
icon which is a shortcut with the .mdw file, it brings up nothing (Access
opens, but the custom switchboard doesn't) .  When I try it again, it creates
an error log, which I assume is telling me that there is already a lock file
on her machine.  Deleting both of these lock files does nothing to fix the
problem.

Somehow, the file became corrupt.  What should I be looking for to fix this
problem?  There is last week's backup copy to revert to, but I would prefer
to not go that route.

tia