Hello, dear Apple community! Sorry if same questions can be found somewhere in the forum's depths, but I didn't manage to find similar topics. I have a display problem with brand new iMac 27 5k Late 2015 which I bought 3 weeks ago and already replaced it 2 times. Which means I have already checked 3 similar iMacs (100% identical configuration) and they all have the same problem which can be easily spotted on attached photo: left half of the screen has slightly different color than the right one. It is a bit (but not quite) yellowish tone. Or I can call left side more "warm" and right side more "cold" if you wish. Check out the photo: https://www.dropbox.com/s/hdqmi2p377nxm6m/imac.jpg I placed Calendar window on purpose to visually divide the screen - 6 months on left and 6 on the right - it makes it easier to see the problem on photo. Did anyone else experience the same? Apple support has no idea what it is. Moreover they haven't heard about such complaints before. Although I am replacing my device for the third time now. Thanks a lot in advance for your help!