When I have my PowerBook's screen on the dimmest setting, the left hand corner is extremely dim compared to the rest of the display, but when I have it at the highest brightness setting, everything is completely even. Is this something I can have AppleCare do something about or is it just something I'm going to have to live with? Here are some pictures of what I mean, on the right is a picture of my display at brightest setting, everything nice and even, and on the left is a picture fo the display on the lowest setting. (I know the camera doesn't make it seem like the one at the brightest setting is very bright, but bare with me)