I cannot play audio CDs as I get an message saying that there is no sound device installed. This was working a few days ago but somehow got corrupted. I have tried all the troubleshooting feature with no results. In the control panel sounds settings, everything is greyed out with a No Audio Device message. I also have multiple listings of Audio Codecs and Media Control Devices on my Device Manager. One of the troubleshooting steps was to remove the duplicates but I am not able to do so. Anyone have any ideas for me? I have already tried system restore (both windows and Ei systems) with no results. Help!!!