Ok guys, I got a bit of an odd one, and I've not been able to find an answer. I have a Radeon 7970 video card, and previously was driving my old 1920x1200 monitor with a dual-link DVI cable, and driving a surround sound system with an HDMI cable plugged into the HDMI out of the video card. That all worked well. I've since upgraded my monitor to a Samsung SA850T, and am driving it at 2560x1440 resolution. The problem I have now though is that if the HDMI cable is plugged into, the screen resolution drops back to 1920x1080, but with nothing displayed. I can see the desktop background, but nothing else, and can't do anything. There are no icons, control bar, or anything. If I unplug the HDMI cable again, no problem. I tried with an HDMI out sound card. Same issue. As soon as I plug the HDMI cable in, video messes up. I then tried a cheapie second video card with HDMI out. Same deal. I then tried DVI->HDMI out of the second video card. Same deal. I then tried DVI->HDMI from the second video card to the HDMI sound card's in port, and then HDMI out from the sound card to the surround receiver, and still have the same frustrating problem with the original display messing up. I am at wits end on how to drive a 2560x1440, and still get HDMI surround sound working. Any suggestions would be greatly appreciated.