Hi all - Just installed CFS3 on a new Core 2 Duo system with an X1950XT, and when I fire it up the screen shakes like crazy. Any ideas? Thanks!

Engine doesn´t fire up on all cylinders!?

This is something to do with dual core processors, IIRC. Try to set the affinity of the processor to one core for cfs3.
If it isn't the cure, have a look at Sim-Outhouse cfs3 forums, and make a search there, I'm pretty sure the problem has already been mentioned - and solved - there.

Roger that.. thanks guys!

I know athlon processors have a patch that fixes the problem. I have a dual core and had the same problem. I patched and the problem was fixed. It's a known issue.