Hi Fruitrocks... I'm currently in the process of getting my 9800 GT to work and i'm having similar problems.. Have you tried installing this 9xxx driver kext?.. I've heard it works.. and its gotten my QE/CI enabled.. but with mouse lag.. :-\... Using that kext in conjunction with efi strings or an injector SHOULD get it working.. Try using NVinject.. I've heard some better stories with that then NVkush.. Does System Profiler know exactly what card you are using?.. sorry if i dont make sense.. i stayed up ALL night tryin to get this to work... ugh.. lol