I can't say for sure, but it may be your electronics behind the panel. The best way is to have a service tech look at it, but if the set is two years old, it is past Samsung's warranty.
We can schedule someone to take a look if you'd like, and you can arrange that at 800-SAMSUNG.
Hope that helps.
--HDTech
I have a samsung LNS4695dx/x thats about 2 years old. a horizontal line of fixed white pixels appeared then shortly the screen became fixed with blury red and green columns with green shadowing appeared. Anyone have any ideas?
Thanks

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