What driver version are you running? See if the NVIDIA site has newer drivers available then Gigabyte offers.
Install the latest driver version 260.89 from the nVidia website and then set your project settings to use hardware MPE.
That was it... Gigabyte's website only had the driver up through version 190... nVidia's website had up through 280 something. Installed the nVidia driver and it works great! Thanks!
Install the latest driver version 260.89...
Sorry Harm, but I think that's not very good advice. Those are in beta right now, and while they may be perfectly fine, this card works with the last WHQL version (258.96). Those can be found here: http://www.nvidia.com/object/win7-winvista-64bit-258.96-whql-driver.html. There is no need to run razor's edge on a production machine.
To the OP: I've used and recommend the uninstallation/upgrade process for the nVidia drivers listed here: GeForce Driver Installation Guide - NVIDIA Forums. I had problems previously when upgrading drivers until I followed this process.