Ok I have a HP Pavilion a1213w I have had it about 1 yr and never had any probs. I went on vacation left my husband here and came back, and now I hear no sound at all from my computer. He said he got on it one day and it wouldn't play sound. Well, when I go to winamp and play a mp3 or even windows media player I dont get any errors and it looks as if it was playing like normal, I see the bars moving. I tried talkin in my mic and it seems like that works too, bars do move when I speak but I can't hear anything. No it is not muted and yes my wires are all plugged in. Anyone think they can help? It is driving my crazy, I need my sound back! TY all in advance. Oh yeah .. I also contacted HP and they were no help .. he had me uninstall and reinstall the driver ... that didn't work.