I noticed I have one small pixel that seems extremely bright, particularly when viewing a web page with a white background. I do not see any problems with the pixel when on a dark background. I think I can live with one weird pixel problem, but in case I wanted to exchange my Air for one that does not have a pixel issue, will the Apple store allow it? Also, what's the likelihood that the Apple store would have the "ultimate" version of the 11.6"? If they do not and I have to order a new one, do they allow me to continue using my current one until the new one arrives (similar to what Dell does for their customers)?