said by trythisfirst :
HDMI detection issue i have seen this a few times. Hit cable then power on the remote, this should turn the box off, then hit menu. there is a setting under hdmi, an audio setting or something called auto detect audio. If you set it to lpcm this should stop happening. Sorry i cant be more descriptive i haven't seen this in a while.
Good call. Bob Bass: here's a link to the wiki page on accessing the settings.