Be sure to turn that contrast WAY down during the first 100 hours of use and don't watch any letter box content if you can help it.Better yet, run the break in DVD found
here
Can you clarify please?
Modern plasmas have greatly improved with respect to both burn-in and image retention. However, they can still be an issue on new sets. The phosphors that comprise the screen age over time. That aging is exponential with the steep part of the curve when the set is new. If you run letter-boxed content (4:3 aspect) when the plasma is new, you can cause the phosphors in the center to age more rapidly than the ones in the boxes (which are dark). Also, most plasmas come from the factory with a standard picture setting that has Contrast set way too high (to make them look good at Best Buy). These settings should
NOT be used during the first 50 - 100 hours.
I strongly encourage you to visit avsform.com and find the thread(s) dedicated to your specific model plasma. There will be recommended break-in settings that you should use when new. Also, if you burn the DVD image linked above, you can play that at night when you're asleep for a few nights and the phosphors will age uniformly.