I just got my system hooked and started experimenting....now I have a couple of questions: Please be patient - I'm trying to learn. What should the default display should it be dolby digital or thx cinema? I am using optical connection to the receiver from the dvd player. If I watch a 5.1 ex movie should the display say Thx cinema surr or dolby digital ex? I selected the "movie" button on the receiver and it gave me the different dsp modes - is thx cinema a dsp mode or a true decding mode? The dts sound track seems to decode properly - it shows 6.1 + thx. Should I leave the SB mode as on or auto? When I turn it on, the rear surronds display lights up on the receiver & the display reads thx surr or dolby ex. Are these the same? Can I turn off the THX mode off - if so how? OR should I leave it on. I reset the receiver to see if the display changed & it did. After resetting, the default display for dvd was dolby digital. Then selecting the movie button I saw the thx cinema. Is this normal?