Since updating to ML, whenever the discrete graphics card kicks in, the color shifts to a blue/cool tint. I have gfxcardstatus installed with growl (so it shows a little alert whenever the graphics switches), and it happens every time the graphics switch to discrete, and only then. Curious if anyone else is seeing this happen on their laptop? Mine's a late-2011 15" - if it might be hardware specific. To me it seems like for whatever reason the color-scheme is jumping around when the discrete is on. I tried playing around with the screen calibration, and whenever the discrete was on, the blue-shift option made absolutely no change.