FIA WRC2 Rally Championship

It stutters here with 4xAA, just like 2010.
I love this game, but the stuttering really ruins the experience.
On 1600x1200 FPS is 90% around 58-60 (vsync on), sometimes drops but never below 40.
I don't have GTX580 but this card runs all other games no problem.

And yeah, if i change to 2xAA instead of 4xAA theres no more stuttering but then the graphic's not nice on eyes...