SO I just installed Cod4 on my second pc. Its alittle older but it still surpasses the minimum requirements. So when i boot up the game (multiplayer) it sometimes allows me to get into a server and play fine but most of the time it just goes back to the desktop with a black square in the corner (like when u have a nonresponsive program) before it allows me to get to the start screen of the game and it just freezes. When it lets me into the server and I quit the server when I am done it does the same thing and freezes. Now the weird thing is I have not had it freeze while I was on a server. Anyone have any ideas of why it does this? I have already tried reinstalling the game but that does nothing. IDK what the heck is wrong. Any ideas would be appreciated. Thanks!