I just picked up this display today, I cannot get it to match the imac display. I have tried various profiles but it is always warmer (more yellow, even though that is a bad word around here ) It seems to be even across the panel and if I just look at the ACD one might even say it is more pleasing. My imac almost looks a touch too cool. Is this a bad one? Should I return this? Anyone with any experience with both displays?