Under EU law, a flat panel is not deemed fualty unless more than 0.0005% of the pixels are dead.
This means both the retailer and manufacturer can refuse to do anything for you, even if you have several bright pixels in the centre of your screen.
Although 0.0005% sounds a small amount. It equates to:
1440x900 = 6 or 7 dead/stuck pixels (6.48)
So with 8 you should be entitled to a replacment.