Originally Posted by e3NiNe

is your cablebox 1080p enabled? If you're with Comcast, try this ...

1. turn off your cable box
2. go to the machine and look for the "menu" or "options" button.
3. a white screen will now appear ... try to adjust the resolution output default. I think it's defaulted to 1080i. Take a look to see what you can do.

I do believe that most (if not all) HD broadcasts are at 720p.




Also, do you have your main cable line into the house split numerous times? Signal degradation will kill HD outputs.

It could be as simple as a bad HDMI cable too. : \