Generally speaking, there is nothing much you can do about it. If it is stuck then it's stuck. You can Google for a program called PixelPal to see if it can help, but that is doubtful.
Unless you purchased some type of protection plan specifically for the LCD screen (most online stores do not offer this option), then you cannot return the laptop for an exchange or refund unless you are still within a generic 2 week return policy period.