Been a while since I've had reason to say much here and unfortunately now it's to report a perplexing problem. I run 950/770 and all has been fine until just last couple of days.
No sub output through SuperCube; and when I go into speaker set up (to check if sub was still selected) I can change any settings there EXCEPT the Sub setting. In other words can modify all other speakers from small/large/none, but sub is set to ON and will not respond to any commands.

This is obviously odd and I want to set this straight before I move to another trouble-shooting step to figure why no LFE

any ideas??