I've seen mac os x tag several colorsync profiles as bad. I suspect the profiles are not 100% following specifications, and OS X has finally decided to tighten the requirements on validity of the icc files following format. They're used to give colorsync an idea of how your display works, the brightness, whitepoint, gama, and color gamut etc. If you don't have a profile file for a display you attach, it can't colorsync it and will use a default profile, or you will have to go through the steps to manually build a profile. So if you need very accurate color on the display that icc is for, either find a good copy or be prepared to calibrate it yourself if you delete it.
Last edited by Virtual1; 12/11/09 07:37 PM.