I bought a HTIB today and want to hook up my DVD, Xbox360, and Dish HD receiver. The receiver only has 2 digital optical inputs and 1 digital coax input. I can't use the digital coax cause none of my components have that. They only have the opticals. Also, I got my DVD hooked up component, Xbox360 component, and satellite receiver is hdmi. I can get them all to work with the optical but I only have 2. I tried using the dvd to receiver with component and then from receiver to tv component but no sound. I'm really getting irritated and the manuel should be used for fire starter! Onkyo doesn't have a tech support available after 5pm eastern which most people can't get ahold of them at those times.