Hi doc, you're not alone I play on a 2011 27 inch imac. Which should be enough to run smoothly but its a little choppy at all resolutions. How did all of you other Mac users configure yours. And to all you trolls Mac is not PC. Win 7 is NOT supported drivers are not supported its not a Cakewalk to configure. Our fans don't even work in win 7 and we need third party apps to stop our computer from having a melt down. So leave us the f*** alone. You are the elitest prick telling us to spend annother 1500 to play this one game. F*** you