Dead or stuck pixels can be difficult to sort out with a supplier. Some companies have minimum number of pixels and their locations on the screen. If there is just one pixel then that may be seen as witin tolerances. Does anyone know what Nokia's pixel policy is?

Dead pixels are black and permanent. Coloured pixels are stuck and can be jump started with programs which flicker the pixel rapidly. Massaging can help some LCD screens but sound dangerous to me. Google around, dead pixels are major headaches...