i right click "my computer"click "manage"click "device manager"click "sound,video and game controller
open(audio codes,legacy audio driver,legacy video capture device,media control devices,video codes. i can choose any of them it shows this device is working properly.i go to start menu, setting,control panel select sound and audio "it showes "no sound device" i don't understand whats going on my video device is working properly.but there is no sound my computeris:- system microsoft windows xp, my motherboard is an elitegroup RC410L/800-M.
