The sound on my PC just went dead. One day I was listening to all kinds of stuff and another day when I switched my PC on there was no sound. In device manager there are no problems and everything is installed properly. I made no changes to my bios but reset it anyway just incase-still no sound. I check my speakers and tried other ones too. I made sure all volumes are full and everything is the same as before but without sound. By the way, its onboard. PLEASE HELP!!!!!!!