Sandy, that does sound unusual. You mentioned earlier that when Blacks, Brightness, and Contrast were all 0 (i.e., no-ops) that the hue shift wasn't there. Now it seems that with Blacks 0, but the other two at defaults, there is a hue shift (due to a blue difference). I don't have an explanation for that. But I'd be happy to study your test images (you have my email).