I was getting ready to watch "The Patriot" on my system - was using the 45TX set to THX mode. Once the menu screen appeared on the TV, on the receiver I saw "DIAL NORM -5". This also occurred just before the movie started to play. Additionally, the sound was a bit on the quiet side - I accidentally selected the "-" on the volume control in an attempt to adjust the sound, and the sound got louder. I have since tried other DVDs and have not experienced this. Any idea what is going on?

Mark