After buying this game several days ago...right off the bat I was having problems with the game stuttering VERY BADLY at several points in the game. Some tracks were worse than others. I visited the EA forum and noticed that everyone else was having the same problem on different machines. I read one guy's post that he tried the Detonator 40.72's and the problem went away. So, after trying several different things to no avail, I decided to give them a try. Once I tried them, all of the stuttering went away....the game now runs as it should. Just thought some of you with this game and an NVIDIA card might be interested in this info. Good Luck!