The biggest "dead pixel" is about half an inch from the left side of the screen and about an inch above the music icon on the dock. It is honestly very very small, probably the size of a sugar grain, maybe smaller but there are also two more close to it that are smaller than the first one. It makes a triangle. However, I never noticed it until i actually looked but it is definitely there and ive cleaned the screen about 100 times trying to get it off now. I can only see it in a few angles too. its not as if you can see it in one angle but in some you cant see it. i had my mom look at it and she cant see anything and neither did her friend but no doubt i can see something. Is it worth taking to the apple store to have them look at it or should i just forget about it? now that i see it, it been just a nuisance. FYI, its a macy gray model, idk what week though. tahnks.