This is not the most pressing issue in the world, but it is important to my client and is baffling me (I'm not completely a Mac expert). New MacBook Pro, two external displays, one connected by HDMI to Thunderbolt, one connected by HDMI to USB. Both monitors are working fine (all three if you include the MacBook's own screen). However on one of the external monitors the dock and the top toolbar are stark white, on the other two monitors they are green (the background is green, so they might actually be transparent). No matter what I do, it stays white on the one monitor. When googling it, I find people complaining about the white dock, so maybe that's how it is supposed to be, but then why are the other two monitors not that way? Is there any way to make the white one match the others? And by the way, all other colors on the monitor with the white dock are normal, so it's not that all colors are skewed. Any help would be appreciated!