Keep getting signed off

[Michael Bouchard]

I, like others that have posted here, am getting signed off of Messenger
(ver 5) at work with the message that I have signed in at another location.
I have made sure that I am signed off at home and have even gone as far as
turning off my home PC but I still am getting signed off with the message
that I have signed in at another location.

I do not have any other IM installed and am using McAffee.

Any help would be appriciated

Thanks

Mike