I got about 110 hrs on my new Panny 42ST30. I notice when i move my eyes around the screen up, down and sideways, i see a green flash. It happens more if i move them quicker. I sit around 9ft away, watching Directv. My contrast and brightness are in the mid 50's. I have it on 2d mode. Does anybody know, what can be causing this? Thanks in advance.