When I came back home from a friend's house, all of a sudden my sound on my computer did not come back. I tried to reinstall the drivers for the sound card and checked the connections from the computer to the speakers but to no avail. The speakers are hooked up to a Harmon/Kardon subwoofer and those connectors are connected as far as they will go. I'm stumped on this one. If this is not the right forum, i'll repost in the directed forum.