Thu Jul 08, 2010 10:22 am by lax
If the game is in full screen mode, tabbing out of it will minimize the game window so you can no longer see it. You need the game to be in windowed mode if you are playing multiple instances on the same computer. An ISBoxer window layout can make them both LOOK full screen and give you the ability to switch between them with ease (as long as, yes, the game is in windowed mode)