I just hooked up my new receiver last night - Pioneer VSX921k. I hooked up my Blu-ray player to the HDMI input on the receiver, HDMI output to TV. I was able to view Netflix on the BR player but when I put in a BR disc the video did not show although I did get the audio. One suggestion I got was my HDMI cables could not handle the high def picture and I needed to upgrade the cables. Any ideas?