Using the rig in my sig, I can't get fluid gameplay in ANY modern FPS. In Doom 3, @ 1024x768 with 4xaa and medium detail, I get jerky bits around the centre of the screen.
The top and bottom of the screen are fluid but it seems like the middle can't keep up. It sort of looks like it doesn't get refreshed properly. I get this problem with Doom 3, Half Life 2, Counter Strike Source but it is fine with NFSMW @ 1280x1024 with details maxed out.
Any ideas? Could it be that my video card is faulty?