I have the exact same machine just bought it two weeks ago and get fps of 60. I up graded to the GTS 240 and use the i5-750 2.6gig and it runs great on HD 22inch wide screen.send me a pm if you dont have it figured out and I will copy my settings and send em to you.

Yeahman, I've sorted it out now and she runs sweetly at 60fps