I have to use a VGA cable for the xbox, and so I don't have a sound output. Is there a way I can have both the xbox and the PC attached to the same speakers?
Well the VGA cable has the red and white audio, you should buy some cheap turtle beach, or tritton headsets that are like 50-60 bucks and youll have sound. You can buy a red and white AC-3.5 mm audio adapter that you would be able to use the PC speakers with the headsets, radio shack, best buy, wal-mart, etc will have it. As far as running the sound simultaneously you wont be able to do that with a some kind of other adapter or splitter.