I'm having issues with my 1713, WMC 7, and Samsung DLP (HLS 6287) holding the picture through boot up. Once windows boots past the progress bar and just to the blue splash screen the picture and sound drops leaving the TV with a no signal message. If I unplug the HDMI cable to the TV and plug it back in it all works just fine.
I've tried disabling the ATI\AMD audo detect service, updating the drivers with no results. In the AMD control panel it says that the receiver is the video display not the TV. It seems to be something with the display detection right before windows starts not anything to do with the reciever, but prior to this I had the media center connected directly to the TV via HDMI and the TV passing L\R to an old 120W\ch Sony system for sound with no issues.
I will also add that randomly every 20-200 seconds the speakers crackel and pop when no sound should be coming from them. They never did this before and are rated to handle the power (volume way down anyways).
Any ideas? Bad HDMI cable? This certainly won't fly with the wife and I'll have to return if I can't resolve.