Before I return it to the dealer, has anyone had their MX-780 just stop sending IR/RF signals? Everything appears to look fine on the remote, but as of this afternoon it has just decided to stop sending IR/RF signals. I've tried re-installing the programming into it, and starting a basic program from scratch.

Have put it in IR mode, IR and RF mode, etc, tried it on various components, you name it. The buttons seem to work, I get the "signal" indicator flashing on the UI of the device, but it doesn't seem to send an IR or RF signal at all.

Any ideas?

Thanks!