Got A Weird One.

Hey folks. Today I slid in a David Gilmour DVD and the phone rang. Naturally I hit the mute button and the 990's display was flashing "Mute" like it was supposed to but the sound never went away. Turned the volume all the way down and the sound was still coming out. It would turn down but only so far.

Popped in "King Kong" for a bit of troubleshooting and the 990 behaved like it was supposed to. Weird.

Any thoughts?