Thanks for your kind words.
It sounds like your television (for whatever reason) went into Shop Mode.
Using the buttons on the TV, push down the MENU button until the screen flashed - should be less than 12 seconds - you may see Dynamic flash on the screen - that's okay. At this point, you are able to put it in settings where they will stay.
If nothing happens, brieftly push the volume UP button first, let it go, and then immdiately push and hold down the MENU button until you see "Dynamic" flash on the screen.
One of those two ways should successfully get your TV out of Shop Mode.
Keep me posted.
I've had my tv for almost 23 months. Still enjoy it! Awesome pq. When i first got the set, i didn't do much in way of color settings, but i've learned to love the preprogrammed "movie" setting when watching dvds (finally upgraded to blu-ray Samsung bd-p2550 last Friday)! The problem is the set reverts back to "dynamic" picture mode every 15 minutes or so. Also, none of my color settings seem to keep, nor do the input names that i program (HDMI 1 - TV, etc.) i seem to remember this problem since day one, but now that i've become an HD fanatic, i really like my own settings, but can't seem to keep them. Any ideas?