Well I found it just out of the blue. Happened to notice that after moving a white window from left to right that on the far right it seemed brighter. Tested more to confirm it, including having my wife look at it. Then I posted on avsforum and found someone else who says he has the issue.
Originally Posted by TampaDude
As I've written in previous posts, the left 1/3 of my screen is a little brighter than the rest. It shows most clearly when a video or movie has a uniform shade of light gray or blue like a fog scene, a snow scene or a sky scene like those in Top Gun.
Guess I'll be playing westy roulette on the exchange. If the replacement has the same issue I'll just have to live with it I suppose.