Make sure you have administrator privileges and open: /System -> Library -> Frameworks -> amework -> Versions -> A -> Frameworks -> amework -> Versions -> A -> Resources -> ist. It is possible to activate Quartz Extreme graphics acceleration for Macs with PCI graphics! This is, of course, espacially useful if you upgraded your Mac with a modern 3D graphics card like the ATI Radeon, as I did in my old B&W G3 350.Īll you have to do is alter a setting in a plist file.