Well, basically my roommate is a nice guy- but he is sloppy as shit and has no sense of respect for personal space. When his computer ethernet card stopped working in December, instead of fixing it he started using mine. He keeps saying he's going to get a new card, etc., but its been weeks and I am sick of him using my shit! Especially for god-forsaken myspace.com!!!!!! Do any of you know of a program that locks out a computer, that can only be unlocked via some kind of key combination? I don't want somthing that asks for a password (like a screensaves does)- I'd rather have something where you press (for ex.) Ctrl+a+v+p etc.- you get my point? THanks in advance.