Just got my PK20. First I noticed the picture was not straight, the right hand side was a lot higher than left, I fixed this easily enough. But the problem is when viewing things with bars top and bottom, i.e. a 2.85:1 film for example, the top of the picture is dead straight but the bottom curves upwards slightly, like an upside down U shape but obviously not THAT much. Is it normal for the top to be dead straight but the bottom to curve slightly on these TV's when watching stuff where it doesnt fill the entire screen? It's fine when there are NO black bars but most of the time there will be on my DVD's so I need to know if theres something wrong with the TV or not.