I just purchased a VSX-70 Elite Receiver. I hooked it all up correctly, I have digital sound coming out of my speakers when watching my satalite TV, but no digital sound from my blu-ray player. It's frustrating. I'm using a PS3 as my blu-ray. I have 2 front, center, 2 rear, and a sub. All speakers work except for the sub, and I can tell the sound isn't as crisp as digital. Can someone help me with the setup. Thank you.