Also, be sure that you're using an HDMI cable and NOT a component cable. Theres been a couple people I've come across that hook those up wrong. Even though they're color coded, somehow people hook up the RED AUDIO OUPUT of the Blu-ray player to the RED COMPONENT VIDEO INPUT on the tv
I know. I know. Trust me, I've seen it done.
Double check your connections. The Sony XBR5 is hands down the BEST LCD money can buy. There should be NO disappointments.