I'm having trouble with an SRC2 remote that won't send Russound commands. When I'm in the "R" device mode, the power, volume, mute, and source buttons don't work at all (as in no red light signifying it's attempting to send). When I'm in any other device mode, the buttons work. I've tried the factory reset ("Set" for 5 secs followed by 9-8-0) but that didn't solve my problem. Anyone have any ideas on how to fix?