My laptop is permanently muted, help?

[ScottishProWrestling]

Ok guys, i hate these threads but im having to resort to it! My laptop in always muted, i can play with the slider and unmute all i want but it immediately switches back to muted after like 0.00001 of a sec. I tried to re-install drivers for my audio but it 'couldnt find the audio device'. Any clues, virus, patches anything? Anyone experienced the same?

[ani]

I had an issue with my macbook that it would mute when I didn't have headphones. It eventually needed to be sent for repairs (Fast turn around though...6 days )

[Reptar]

Maybe go to control panel, disable the speakers and then enable again? That's what I always do when my sound stops working.