Using two of these for a dual-monitor development workstation, I was somewhat shocked that they both have the same problem: they don't display white.
Instead, they display a pale, "glacier ice" blue. There is obviously something wrong with these...but the fact that BOTH monitors have the same problem is certainly a cause for concern - it's not that I simply received a bad one.
Basically what happens: the longer the monitor is on, the more blue comes into the screen (it never starts out at true white, though.) Once it hits a certain threshold, the OSD for "Color" is grayed out/disabled, so you can't even manually tweak it. Instead, you need to "Reset" it, which puts it back to the default of 9300K color mode, which displays solid black...or nothing at all. Then, still going through the OSD, after the Reset is done, the "Color" option comes back, and you have to set the colors manually. None of the presets display anything; you have to set them manually. By default, all the colors are maxed at 255. I found that setting the blue to around 190 is pretty much as white as you'll ever get...but it's still clearly blue.
Since this exact same problem exists on two of the same monitor, I'm inclined to believe it's a defect in the design. A previous business-class Dell monitor did not have the problem, and it was only replaced because it had a glossy (hi-glare) screen and I prefer the matte finish without the glare.
Two stars: one because they turned on, and one because, if you work at it long enough, you can get *something* to display. Not recommended.
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