I am using a quad core computer, with a 1gig graphics card, windows 7 OS x64, and the whole shebang - so my comp runs this beautifully once i actually get into a game. But the game will freeze randomly outside of games, i might hit "multiplayer" and the game will show the button as clicked, but stop responding, the music will keep going. Shift alt and such wont work so i have to ctrl alt del to get out of it, and it shows it as not responding so i have to shut off the process. I get maybe 10-15 of these each session i try to play.