First off, nice computer line up you have G.
About the res, it appears you are using the la-*test*-('") beta driver. Have you tried using driver 158.18? I know the beta is the la-*test*-('") update, but it is still beta.
You can also try getting a driver from tweaks r us.
http://www.tweaksrus.com/They have been known to produce some outstanding driver, especially for the 8800 series.
Hope this helps.