Many people are used to looking at monitor screens that are way too blue. And thus when they look at a white screen they think it is yellow. This is not my opinion, this is a fact. A vast majority of the monitors sold now-a-day are calibrated to a color temperature that is close to 9300K, which is way way too blue. A neutral color temperature, one that is neither too blue or too yellow, is 6500K. This is the standard color temperature for photographic work. Even high end monitors can have a very bluish color cast, reason being that if you are so particular about having a neutral color screen, you would spend the money on a colorimeter (Spyder, Eye-One, etc.) to calibrator the screen. The reason commercial monitors are calibrated to display a blue tint is that blue stands out more in the show room. If two monitors are placed side-by-side, most people would prefer the one that is more bluish. If you go into a store and play with the expensive monitors, you would find that most have setting for color temperature, and inevitably they are all set to 9300K and not 6500K. Before you judge a screen that is too yellow, you might want to compare the screen to a calibrated monitor. Before you judge a screen that is "white", compare to a calibrated monitor to see if it is in fact too blue. From my experience Apples does not play that 9300K games with their displays. All Apple screens are close to 6500K because Apple products are used by many graphics artists.