Since calibrating with SuperCal, I've noticed duplicate display profiles for my external monitor alongside the custom-calibrated one. Deleting the corresponding files under HD>Library>Color Sync>Profiles>Displays alters nothing, as OS X simply recreates them at the first opportunity. Under User>Library>Color Sync>Profiles I see only the custom-calibrated profile, nothing else. Is this a bug related to calibration and external displays? Fixable?