samsunglover99,
Do you have the latest firmware on the television installed?
Also, are you running Anynet+ functonality on any of the units?
--HDTech
I currently get a "mode not supported error" sometime (depending on the order of turning on the system i.e. turning the amp before the dvd player)
Here is what I own:
Samsung LNA650
Samsung BDP2550
Samsung AV-R720
What could be the cause of this? It is fairly annoying so I would like to know to fix this problem.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic