I have an Access 2000 database where the backend resides
on the network (mapped as Z:\) and the frontend resides on
each users PC.  

Users log on to the database and are then presented with
their user-type front screen.  On the whole this process
completes in a few seconds but I have a sporadic problem
which I can't pin down.

Occasionally the application will be very slow to show the
logon dialog box, user logs on and again there is
significant delay in showing the user front screen.  Once
this displays the application 'locks' and the user is
unable to push any of the buttons or use the menu items.  
The only way to close the application is to go to task
manager and end task.  Incidentally, task manager shows
the application as "running" and CPU activity is minimal.  
I've tried leaving the application open to see if it
manages to regain control after a period of time but
haven't managed to do this as yet.

General network performance is good and when the problem
doesn't happen overall application performance is
excellent.

Any ideas?  I really need to solve this one but I'm
stumped!

Thanks,

Fiona