Hello all, I'm interested in buying the new Macbook Pro Retina. Currently MacMall would have the best deal, since I'd avoid the 6% sales tax (which would be significant) from my local Apple Store. My question is, if the screen has the yellow tint that happens with Apple laptops every once in a while, or if anything is wrong with it, would I be able to exchange it at my local Apple store, or would I have to ship it back to MacMall? I plan to buy Apple Care with it. Has anybody dealt with a problem like this before? Thanks for any help.