I have sound when I calibrate my speakers, so the sound works directly from my computer. I have checked for drivers and Device Mgr says my sound is working fine. But when I go on line and try to listen to any videos or news feeds I have no sound. When I download music I can not listen to what I download. It is not on mute, my volume is maxed. Whenever my computer gets slow and I get impatient I sometimes just keep clicking the link I want it to go to (Not a real patient person LOL) and I get scared out of my wits because my computer starts BEEPING really LOUD! But STILL NO sound while on line! HELP!!! I would LOVE to watch things on U-tube!