I've had my 15" PB proped up on some books for the past 3 weeks and today i read a post about how some people have problems with the PB's not being level. So i took it off the books and now it looks/feels like there is a wierd slope. It seems like the part where you rest your palms starts sloping down towards the keys. I't hard to explain. But when i look at it eye level it is perfectly straight. I guess it's just because i'm so used to typing with the back raised. But i just discovered that the laptop does not sit perfectly straight. There is a very slight wobble between the top left and bottom right corners. Not noticble when typing, you actually have to move those 2 corners to see the wobble. I read there is a way to fix it sometimes by making the PB hot and hopfully causing the alluminum to sort of "melt" back into place. Don't know if it's true.