i got a new hdtv and i already hooked up my ps3 to it cause it was all simple cause theres only like 3 colored wire things. but xbox has those extra 1s (green, blue, red) so i thought you could just plug them in cause its color coded. but when i did, i got the picture to work but no sound. and i think i did another way where i got sound but no picture...? anyways i need help! cause i dont know what im doing and i dont know anything about hd stuff :'( :-\