As LCD displays are more common now, you can visit a best buy and see many in a row. The amount of defects in such displays is rather astounding. Not defective, just defects. Look of the eveness of color purity from corner to corner and you see it everytime. The CRT rules still here. But that would be a bit much for a laptop so we make compromises.

Compare it to other laptops and if you really feel yours is defective, call it in.