The internal speakers on my Acer 6920 suddenly stopped working last week. I can listen to audio no problem through my headphone jack indicating this is not a soundcard issue. Also, I have been in control panel and volume controls and device manager and everything appears normal and working properly and nothing is muted. Also, there is a strange red light emanating from the headphone jack. This appears to be some type of hardware issue, or "switching" issue...as if whatever the mechanism is that turns off the speakers when the headphone jack is in use is stuck in the "off" position. Can anyone advise?