Outlook shutdown problem

[Mark]

Hi,

We have a newtork of about 20 users - all machines with identical
configuration (except hardware drivers) running Office 2000 SBS (no
add-ins). On a few, 3, machines Outlook refeshes to shutdown. It sits with
the message - 'Please wait while Outlook exits'. I have applied all of the
service packs avaialble and applied all updates on the windows update site.
Has anyone else seen this problem?

Mark