Think i have seen this in another thread on some forum but think there was no solution that i recall. I tried the SCENE button and now when playing an MP3 file via PS3, i can't seem to change it to either surround or 7-channel stereo that i believe I was able to before. When pressing Movie/Music/Sur.Decode/Straight buttons, it just shows "Not Available" on screen. I can only engage Enhancer and Pure Direct. Help! I want to listen to my MP3s in 7-channel stereo or other DSP modes like Hall in Vienna etc.