I have some quirky issues every once and a while with my S-1000 processor. Sometimes when switching between DD5.1 and DD PLII + Surround, the Center channel becomes the rear left, the rear left becomes the center, the RR becomes the Sub, the L, R are fine..... VERY VERY Strange. Has happened 2-3 times, and I am fairly certain it is due to the video switching of the Comcast cable box (Motorola HD DVR). Like when the signal switches between DD and PLII channels. Anyway, a reboot fixes it. Hope this helps.
Ross
Ross