nvidia 8800gtx weird "jitter" problem

This machine is easily powerful enough to run SL with no problems. AMD 3.4 DC / 2gb RAM, and an 8800gtx graphics card. For some reason The SL client produces a very strange result on here - almost any animation in world has this effect where its nearly double speed, and then it jitters. This effect does not occur on my laptop, which has an ATI mobility firegl 5250 in it - oddly enough, SL looks great.

Does anyone have settings that I could use with the 8800 that will resolve this strange "jitter" / fast motion problem?

This might be related to an AMD Dualcore timing problem. If you don't already have the dualcore optimizer program from AMD installed, please do so.
You can obtain it from here:

http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_871_9706,00.html

Food luck ^_^

-Asriazh