Why do you need 5.1 on your computer? Do you game on it? My monitor looks like a single speaker but it's prolly a 2.0 or 2.1. It works fine for listening to the sounds of people logging onto AOL. My PS3, however is hooked up to a 2 piece set but I'm kind of thinking it's 4.1. Though I can't really find the Sub on it makes me believe it's a 2.0. I don't think they'd make a 4.0 because it wouldn't sound right.
