My original 30Gb 5G iPod decided today that it would be broken. It has acquired 2 clusters of dead pixels or some type of screen artifact. On the 5th line of text on teh left and right these small patches lie. They are a red/purple type colour and annoy me to death. I have no idea how they got there and my warranty is dead. Do I have to get a screen replacement? Or is there another way?