I've got an Audigy sound card set to quad speakers. It goes back to stereo by itself, and I've never been able to tell just when, ie. when I boot up, or reboot, but it's not immediate. I just suddenly notice its back to two speakers. Also, I have updated the driver once since I bought the computer, with no problem, but the latest driver, I cannot get to install. I have tried uninstalling the old driver, and also installing over the old one. It still shows the last driver, not the new one. Has anybody else had these problems?