Was running ProPack on G4 733mHz 1.5 gigoRAM, it seemed Painfully slow. Like, I can't-wait-this-long-for-the-Pose-library-to- open-slow. So, I switched to a dual 2 gHz G5 and it now runs very smoothly. Seems like a no brainer but I've always suspected something else was going on with the G4 to make PPP run so slowly. Animajik, why is P4 better for animating? I haven't made the leap to P5, yet.