Have you tried connecting the HDMI cable into a different port on the TV itself? Its possible that by simply changing the port, the picture may correct itself.
Hoping to find someone to give the solution to my problem:
I have a Samsung BD-C6500 Home Theater Set, a samsung LE40C530 full HD TV and connect both with a Monster HDMI cable.
I dont get any picture on the TV. When I hook the set up with component cables, it works in 1080i. When I attach both the component and HDMI I get 1080p over component. I tried AnyNET+ CEC ON/OFF without any difference.
The TV set recognizes the BD Theather over AnyNet so some signal most go over the HDMI cable.