Hey I was wondering if anyone knew how to fix this problem, I have this HP Pavilion Elite desktop that my girlfriend gave me. She used it for a month for WOW and watching tv on. She bought it brand new, but never had PC speakers hooked up. It was hooked up to a plasma tv. The HDMI output works for sound but the standard headphone jack is not working. I have tried 3 different type of computer speakers all top of the line. Bose, Klipsh, and Altec Lansing. None worked, it says the device is working properly but it says the speakers are not hooked up. I have also tried the headphone jack. It does not work either. I have updated the drivers, the computer because it set for almost 6 months. it has the six headphone jacks on the back for the surround sound, and i called HP they said the green output is for the speakers but it still is not picking up the speakers nor the sound is working in any other jack. What can i do to fix this