I have played MW2 since release and my hosting has been absolutely fine and before MW3 came out I reformatted my computer and installed MW2 again and i've been having problems with my hosting ever since. Everything is fine until the game ends and it just hangs on a black screen and I cant even Ctrl + Alt + delete it, it forces me to restart. So now MW3 is out i'm having the same issue... if i'm not hosting the game it will work perfectly and doesn't crash. Its just after i'm hosting the match and the game comes to an end and crashes.
Windows XP Home Edition
Intel Core 2 Duo CPU E6850 @ 3.00GHz
I have recently updated all my drivers and it didnt seem to help. Any advice on what it might be?