A while back, the Meridian firmware update for the G68 caused the optical input to mis-behave. I switched to an analogue connections to my Sky Plus Satellite box but understood this had been fixed and so switched back to an optical input the other day. While it seems much better than before, I've still had the G68 freeze up twice where volume doesn't work well and I can't change the input without turning the unit completely off at the switch on the back. Anyone had or having similar issues?