Ever since loading Windows Vista service pack 2, the sound isn't working. This is on board sound, Asus M2N SLI NVIDIA nForce 560 motherboard. Speakers work (tried on another computer.) Control Panel --> Sound --> Properties - indicated everything is working properly. --> Update drivers - indicates I am using the most updated driver. C-Media website had nothing and I couldn't find anything on the Asus website. Could use a little help. Thanks!