I'm sad today. I ordered max specced iMac four weeks ago and got it yesterday. The screen was big disappointment. The left half of the screen is perfect but the right half is yellowish, getting more yellow as it goes towards the edge. If I open textedit and drag it from left to right I see the colour changes almost like the right side is dirty. In 2009 I had iMac's with that issue but not since, I thought this yellow thing was in the past. I'm very disappointment.