I took my Macbook White (2010 unibody) to the Apple Store so they could repair my outer casing due to the cracking issue. I got it back two days later (today) and was surprised to see a new screen (didn't know they were attached together); after I took it home and upon closer inspection, I noticed a few dead pixels - at least I think. Not sure if it varies between monitors but I've seen dead pixels in multiple colors (black, red, green), but these are white/silver dots along my screen... basically, they look like drops of water (say you accidentally sneezed on your screen); I counted at least 13. I'm not sure if this is an issue I can fix myself, or if I should just take it in and ask for a replacement part. Is this something I should be concerned about?