I have never swapped out an Apple device for a screen related issue. After reading through the threads here I noticed that my screen is warmer on the left side and appears like there is a off-color smudge in the lower left corner. I didn't notice it in the Apple Store yesterday due to the lighting but it was pretty noticeable last evening at home. After reading about the horrible yellow screens some of you have received, is it recommended that I swap it out right away? I have an appointment with the Genius Bar today but I can always postpone it. Will they give me the opportunity to check the other display before completing the swap and could I keep this one if the other one looks worse? Or should I wait a few weeks until hopefully quality control improves.