Anybody else noticing this? Apertures Red Eye Tool is not working on an iMac (Late 2013) with i7 and GTX780M. I have Aperture 3.5.1 installed. Red Eye-Tool shows it's yellow circles but red eyes stay just red. All user accounts are affected. Safe boot, reinstalling Aperture, deleting all prefs doesn't change anything. I suspect it has something to do with the graphics card (driver)?