I have been having troubles with the sound menu recently. I am running a stereo with an optical cable and a HDMI output. Both of them work. However I can not easily switch between them like I used to be able to. I have the most up to date driver from Realtek (Nov 5, 09). When I select the sound menu from the control panel nothing happens. I have to go into volume control to change my devices and it doesn't always work. I hope this is enough information. If not please tell me if I need to provide any other info. Thanks!