My 1070 has occasionally had a small problem which results in no sound whatsoever. What happens is that all of the small speaker/channel indicators in the display (small boxes with L.R.C.SL.SR ect) start falshing and no sound comes from the speakers. This has happened 2wice while playing MPEG DVD's (connected digitally) and recently when I plugged a VideoCamera into the front inputs. The fix is basically to switch the machine off and usually it works first time. Anybody experienced the same thing - any ideas ?