Ok, ever since I got Tiger, I sometimes see pixely dark grey blotches on pictures that have black, at first I tried turning Quartz 2D Extreme off and restarting my PowerBook, but no luck, could it be Core Image? (The reason why I ask if it's Core Image is because my sister 12-inch 1 GHz iBook doesn't get the blotches and does not support Core Image) Heres and example of a pic where i get the blotches: http://www.deviantart.com/view/939982/ and a picture of what i see from my screen is attached. (I can increase the contrast or make the picture darker with iPhoto to get rid of them but I don't think it's right that I have to do that especially when my sisters iBook doesn't have this problem)