If your PowerBook has a blotchy appearance, was manufactured between July 2003 and November 2003 and its serial number falls between V7334xxxxxx and V7345xxxxxx or QT331xxxxxx and QT339xxxxxx, you may be entitled to a new LCD. Call your local Apple contact center, or drop by your local Apple retail store or Apple Authorized Service Provider (AASP) if you think you have a claim.