Help: Need to lock mouse to one monitor (out of 2)

[kayzeno]

I play tf2 often in full-screen. Sometimes when I play I flick my mouse and accidentally click on the other monitor, minimizing my game. Is there any way to prevent this, like locking the mouse onto one screen without disabling the other screen? I don't want to play the game in windowed mode. I am using windows 7

 

[Phillip Corcoran]

You can't 'lock' the mouse to a specific monitor.