I just received my 13" macbook air tonight. It is an awesome machine, but I am getting kind of hung up on the font sizes. My eyes are very strained after working on it for about 2 hours. I did all the zooming and all that stuff, but it still just wasn't great. I am worried it is going to be too much of a strain to do a lot of work on. I didn't think my eyesight was that bad, but maybe I was wrong! Would it be crazy to exchange for the 13" pro with poorer resolution to get larger native fonts? Did any of you think the text was small at first but then get used to it?