Hi. I received my iMac last week. It's a BTO 21'5" i5. I really really love the machine and the S.O. I was scared about gameing performance, but I runs really well. The only thing that I am concerned about is the screen. It has some dust under the glass, but I think that it is normal, and dust will enter before of after. The problem is the yellow tint, and some dead pixels. Well, it's a 1920x1080, so, pixels are really really small, and hard to see. But the yellow tint...it's worse. The thing is : Should I ask for a replacement? Apple said me that they will send the one and I can keep this while the new arrives. But, if the new one is worse than this one? The yellow tint is only a bit, and I could get another one with more tint, or noisy HD... Does it worth the headache of the replacement process? It's possible to get a non yellow tint?