I have an inspiron 530 with vista and there is no sound. I tried a system restore in the safe mode with no results and downloaded the latest driver from Dell's website and it still didn't work. Also, the Dell tech reinstalled the old driver from the driver's and utilites cd that came with the system, still no sound. The dell tech said the motherboard was bad and would have to be replaced, but I ran dell diagnostics on the motherboard and the sound card and both tests passed and the sound test played the music, which was loud and clear. Can anyone help?