I've posted about this before, but the situation is a bit different now, so I'm going to ask again. I returned my first iPad 2 for dust specks under the screen. I had it for about a month when I noticed the first one, and then one turned into two turned into four or five. They exchanged it for me as a "one time courtesy" but claimed that it was "in spec". This unit had very very little light bleed. My second one is 99.99% light bleed free, even better than the first one. It has a dead pixel near the edge of the screen that really doesn't bother me because I rarely look there anyway. But it also has some residue stuck to the underside of the glass. It's not dust--looks like little grey spots in a dotted dime sized pattern. These spots are not visible unless I'm looking at the screen in direct flourescent light and the screen is off. In regular lighting when I'm not looking for the spots I can't see them and they are not present at all when the screen is on. I wouldn't bother returning for the dead pixel, because under three is within spec for that problem, and I don't want to waste a trip to the Apple store for something that's not bugging me. And I think I could have returned for the gray spots when I first got my replacement, but that was months ago and I'd bet that now they will not do anything about it. I also don't want to give up my screen that doesn't bleed, return it for one that does bleed, and then be told "sorry, we can't exchange again". And then there's that vicious exchange cycle you can get in. In general I am happy with my iPad as far as all the things I'm doing with it, but I'm trying to get over the hump of that grey gunk bugging me all the time, even though I have to really look for it to see it. My co-workers and my wife tell me it would be a waste of time to go and return for such a small and unnoticeable issue. Thoughts?