I'm using the YPbPr inputs on my 30" Olevia for my Xbox, using the HD pack, b/c the display is the same as a standard source using the YCbCr inputs, which won't display anything higher than 480i. Syntax has told me that I can't play a progressive source (480p) through the YCbCr. So why is YCbCr considered an HD component source? And if I can't use it for my xbox for 480p or better games, and I can't use it with my progressive scan DVD player....just what can use it for?