I recently purchased an LN52A750 in November and am satisfied with the picture overall. However, there is an issue I am having with the screen and I have not been able to find any other threads in other forums with this problem.
The screen appears fine when initially turned on and waiting for an input signal. However, after about 10 to 20 minutes of warming up, there are specific areas that begin to show a very faint "ghost" image. It's more like a bleed-through from the backlighting, very faint, but fixed in one location (there are several of these "fixed" locations on the screen). I contacted Samsung and, through a local service center, had the panel replaced. This took care of the LOCATION of the ghost images, but not the appearance of the images. In other words, I now have the ghost images in two DIFFERENT locations on the screen, but they are there, nevertheless.
I should point out that the images appear and disappear when viewing the panel off-axis. But they are very visible in the "sweet spot" where I sit to watch. I'm considering returning the television and buying a different brand, but the picture quality itself is really good (except for SD viewing).
Anyone hear of such a thing?
Thanks for reading.

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