On my 2010 15-inch MBP, I noticed that when I switch between the integrated Intel graphic card and nVidia GT 330M, the color rendering is very different. When I use the default "Galaxy" wallpaper, with Intel card the top menubar appears more grayish, while when switched to nVidia card, the menubar looks much more bluish. Overall the color on the nVidia card seems more saturated than on Intel card. Anyone else also noticing this? I'm on ML GM (12A269), BTW. I would have made screenshots to show this, but they look identical when captured, which makes sense since only rendering is different, but not the actual RGB value for each pixel, I think.