So I bought a 15" MBP with no warranty (2.16, 2006 model) and though there were some minor cosmetic blemishes I was aware of, I didn't notice this until now. On the screen, under any background, there are a pretty big slab of black scattered. I tried cleaning it off, but it's like they're hidden under the screen. The seller made absolutely no mention of this when I was buying it and I didn't notice it until I got home. Are they dead pixels? Can I get them off myself? There is no warranty remaining and I'd be very upset if I have to toss over $350 to Apple to get the screen replaced.