So I have a HD7850 that I'm testing, and I can't get any audio out from the DVI port. The audio driver is installed and is detected in winXP sp3, but Windows Sound Properties in Control Panel only recognizes the onboard audio. I'm sure that is the reason why there is no audio out from the DVI port. Same thing if I use an HDMI cable. I've tried searching, but the only things I keep finding are "this is how you change the audio controller in Windows" type of things. I know what to do, it's just not there for me to do it! lol Is there a Windows patch/update available or some other sort of work-around to make this work?