I read something here about this before, try going to your user CP, then to "Automatically login when you return to the site? (uses cookies)" click no, if yes is already your defualt. I never had to try from 2 puters, but I read that awhile ago so its worth a shot....just remember your password. This way it closes you out of the work puter and the home puter should work and vise versa. But maybe like wamp said, if you were ever banned, that may be a factor. HTH