Check your manufacturer's warranty and see what their dead pixel policy is. I can return mine if I have 8 or more dead pixels, fortunately I have no dead pixels on my 19" Hyundai.
Note the difference between a dead pixel and a stuck pixel. A dead pixel is a black dot on the screen. There's nothing you can do about it. A stuck pixel is some other colour, like red, blue or green. Here's one way to try to fix it:
Be warned, it can actually make the problem worse. There's a also a small video file available, that rapidly changes the colour on the screen, and is suppossed fix stuck pixels.