Hi! 1 year ago a bought an iMac 27" and indeed it had the yellow tinge issue in the bottom right corner, i didnt care so much since it only was a computer that i wouldnt use that much so i did not replace it. Now, 1 year later when i bought the ACD 27" i looked for the yellow tinge on the iMac and to my surprise i couldnt find it, neither could a couple of friends so i guess it is gone, the screen if the iMac looks completly white when showing white, but to my surprise the new ACD 27" looked blue and yellow compared to the iMac, i managed to calibrate away the blue but the yellow remained, the iMac was alot whiter than the ACD. I have had the ACD for 5 days now and the yellow is almost gone, and now the ACD is whiter than the iMac screen, there is still a yellow tinge area in the top left corner of the ACD but that spot seems to go away soon too.... Anyone else that had yellow tinge issue that is gone now?