DhampireRayne,
If it's only visible on a completely black screen, and not affecting the viewing of the panel, I wouldn't consider it a service issue. However, if you feel that it's beyond what it should be, you can call a service tech to come out and look at it.
Some flashlighting IS inherently normal on an LCD panel. It's when it affects the rest of the picture that it can become a service issue.
--HDTech
Hi, I just recently bought the LN52A850. I absolutely love the tv. My only concern is Im getting the flash lighting problem. I only see this band of light when viewing a black screen. It doesn't bother me all that much but I like things to be the best it can be. My question is, I bought my tv online at onecall. There warranty only covers 72 hours after getting the tv. I didn't notice the flash lighting as I didn't watch anything except standard television. So under Samsungs warranty, Do they offer product replacement if they can't fix the issue with a tech service? Thanks. Again im not bashing the tv. I love it..

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic