Unfortunately for me, my Yamaha receiver is displaying "Decoder off" and neither I nor customer service can figure this one out. Analogue inputs do work however. Insult to injury I can find the remote anywhere among my stuff, but it should work automatically anyway.
Update: interesting, I think it's the Xbox's fault. I noticed in Settings that it thinks the display is connected via DVI despite the connection being through HDMI. Anybody know how to change this behavior? I've been having display troubles since the last Xbox update.
The xBox update might have reset the xBox to default settings.
Guess it's time to find that xBox manual and call out the dogs to sniff out that Yamaha remote.
Should be able to download the xBox manual from the Internet.