Hi. The card arrived today, I uninstall the drivers of my 8800GTS, and run DriverSweeper, then install the new Catalyst drivers (9.4 for XP x86) The installation showed zero probs, but when the system restarted a window saying that the system find a High Definition Audio Device appeared, then I cannot install the device. Everest show that my card came with a RV770 High Definition Audio Controller, I suppose the audio device that refuse to install is this since under the "audio devices in device manager" doesn't show any Rv770 Audio device. The card is a Sapphire HD 4850 that comes with DVI/HDMI/VGA connectors. The card seems to work ok, even I OCKed it already and runed FurMark just fine, I didn't tried 3DMark06 yet, but ATM didn't show any artifacts or stability issues. So the question is HOW I can install the RV770 Audio Controller or WHY I cannot install the device??? Also, for what purpposes is the RV770 Audio device???, I suppose is for the HDMI interface but I'm not sure. HELP PLEASE!!!!