Database slows when Admin logs on

[Mark]

I have a secured split Access 97 database with about 10
simultaneous users. All workstations are running Windows
98. It seems that whenever someone is logged on as a user
that is a member of the Admins group, it slows the
database down drastically on everyone's workstations. But
when that user logs off the speed increases dramatically.

Does that make any sense? Has anyone heard of this before?
Is there a reason for this? A solution?

Thanks if you have an answer

Mark
Ontario, Canada