In my company, that wouild get you fired.
That is a Corporate Policy issue.
Ditto for McAfee.
There is a ruleset for this in our Online Ruleset Library called "Simultaneous Logon Restriction":
I think it started as a result of another community discussion.
Thank you guys for the answers.
I agree they should do that here too, but they prefer to blame the software rather than educate the users...
Anyway, the ruleset sent by Jon worked perfectly!
Thank you very much!