Thanks buddy
Have both Vsync and triple buffering on in CCC and Rasterizer. I actually have FSAA to 4x in CCC and AF to 8x (both CCC and Rasterizer). In game the antialias in manadatory grey/unchecked. It's just at Schottenring (ofcourse no cars around) everything went smooth IIRC, but at 65 Glen I got these mini-freezes. I will lower FSAA and AF first now.
I'm suspecting the crackling sound has to do with it, but not sure. It's not a consistent problem so far, offline seems better, need more races to determine. I can get used to the little crackling, but not the mini-freezes. Normally, when things do not go right, or you suffer from bad luck in a race, most of the time the steam comes out of my ears, but then the adrenaline is mostly used in a positive way. This stutter thing is just plain depressing...