So, over the Thanksgiving weekend I found a 20gig PS3 at one of the local used-game retailers. It was fairly cheap so I decided "what the hell" and picked it up. Today was the first chance I had to actually set it up. Took everything out, put the plug into an empty socket, put in the same three-color cord setup I've been using on game systems for the last eleven years, power it up and what happens? Absolutely nothing. As far as I can tell the system powers up fine but nothings' being displayed on the TV screen. AM I missing a step or could there be something wrong with this system???