please see >> http://www.avforums.com/forums/showthread.php?t=157692 I cannot get 5.1 sound from my a11, seems to be fine with my arcam dv88p, in the a11 menu i have not touched anything, one min it was fine, the next its just stopped. On the front of the player, all channels are lit. Anyone any idea's ? How do you do a hard reset on the a11 ? Think this could help ?