Well, she has to put her glasses on to read, I have to take mine off to read. Thing was, we were both within our focus range, not needing glasses to focus, and looking at the image simultaneously on the same screen. This removes the monitor, the video card, the white balance, everything, from the equation. I can't see blue/black at all. She started with blue/black, shifted briefly to white/gold, then back. There's something here that needs a scientifically rigorous explanation.