Shaky car?

[Olly]

I've noticed on some circuits I've downloaded the car shakes about a lot, particularly on long straights, sometimes to the extent of actually throwing the car into a spin and into the wall (particularly Monza on the long straight before the last corner, and the run up to the first chicane) where you're already driving on the apex right by the grass verge. Is there anything I can do about this, as whenever I watch the computer cars drive their straights are always very fluid without any of this shaking?

[Olly]

Ooer, duplicate... Please delete!