It sounds like it's in SHOP Mode, which will revert all of the settings back to Dynamic and picture settings.
Try going through, depending on the model, by running the Plug and Play feature in the TV's menu, and select HOME Mode rather than SHOP Mode.
Does that help?
my mother-in-laws samsung lcd has trouble staying on wide fit when watching regular digital programming. after about 15 minutes or so the picture automatically changes back to 16:9. Is there a quick fix out there or will she have to bring it in to get fixed? it is only about 3 years old