[Solved]Windowed Mode Error

If anyone can help me, last time it got deleted for no reason. When i go into a match in windowed mode, i cant aim or anything. My guy just stairs at the sky and when i move my mouse, he stairs at sky spinning in circles. I tried matching screen resolution with game resolution, but still didnt work. Any explanation to why, or how to fix it.

Windows Vista Home Premium 32 Bit.

/moved 2 help

try to restart the game then wait a bit then press it from the taskbar that should be cool

It might be because ur running vista,,have you got any other computers at home to try it out?