I just purchased my PT-AT6000E about a month ago. Just amazing device, specially when my previous one was PT-AX200E, huge improvement (naturally).
But I noticed now that there is a little bit brighter horizontal pixel line just in the bottom and top of the image. When viewing from 2-3 meters distance it is not that visible but it is seen closer more easily.
I see this brighter line only when viewing something that has black bars and not filling my whole 16:9 screen. I tried to detect it by checking out a movie that fills the whole screen, but did not see it. So maybe only visible in some aspect ratio. Also not seen if there is black or dark colors, only against bright scenes.
Then for my surprise, when I launched a bluray on a 32" lcd tv, and when I inspected the image from close, I detected the same kind of brighter pixel line. It was just not that visible as on the big screen.
So I started to suspect, maybe this is something common in LCD displays? Or is it something that definitely should not be there and I should get my projector fixed.
I attached an image about the brighter pixel line. Please note that I added a lot of more brightness so the line is more visible and you get the picture what I mean. In real life, it is not that visible to eye.