I just got my brand new 15" powerbook last week. Beautiful machine... And almost flawless.. One thing that I noticed is that there is a bit right at the bottom left corner of the screen where the backlight seems to be slightly darker than the rest. It's only about 3 or 4 millimeters in radius, and isn't noticeable during normal use, but sometimes just knowing its there... Anyway, I don't think I'll bother replacing it, but have any of you noticed similar darkened spots on displays? Did you send it out for repair or just forget about it and keep the computer? Other than that, I'm really happy with this powerbook!