Hi all, I'm hoping somenone can help me with a problem on this set. The top half inch of the screen seems to have gone out of geometry in a pyramid fashion, i.e. the top left and right of the screen slopes towards the middle, reducing as it reaches the centre. It's quite annoying, now I know it's there, as all vertical images kink at the top of the screen. Is this fixable or will an engineer need to be called out, any help would be gratefully received.