Hi! I have discovered something strange this weekend, and I have the feeling it has always been like this: when I set the center speaker to "None", there is still sound coming from it, and it is non-negligible, so to say... In stereo no sound comes from it, but if I set the prologic II in "movie", there is... I didn't try other possibilities, like DD, DTS or PLII-music. Is this normal? Thanks.