[MrEminemFan]

As the tittle says, my mouse dosen't work on singleplayer for some reason? I've tried alot of stuff to fix my mouse on single player but I can't. It works on multiplayer just fine and everything but it won't detect my mouse or anything on single player. When I'm on the menu, the mouse moves but I can't press anything and IG I can't aim or look around.
So I can't play single player and I really want to play it. I've seen fixes for Windows 7 but atm. I have Windows XP and if someone could help me, please tell me.

Thanks