Ok, just to clarify a few things: - My speakers are on - I can hear audio files just fine My problem is that I am no longer able to hear the sound when I play dvds in the player, or even when I play Video_TS files from dvd copies already existing on my computer. I see the video, but no audio comes out whatsoever. I have tried playing them in a variety of player including Dell CinePlayer, Windows Media Player, and ATI This problem just began about a week ago - I've never had the problem before. I haven't unplugged any cables or moved any soundcards. The only thing I can possibly think of is that I recently had to shut down my computer to stop it from burning a DVD. As I said before, though, I can't even hear sound when I play DVDs off of existing files. Any help would be greatly appreciated. Thanks!!