Yes Mike, the Cube is running at 450 MHz where the G4 is only 400 MHz. The extra 50 seems to make all the difference in the world, or maybe it's just the newer architecture of the Cube. But the speed in Bryce is about 1/3 faster. Poser has no difference that I can see. But Poser is far less intensive for the machine anyway. Oh, I also downloaded the Bryce Beta for OS X. Not worth it in my opinion. But it's nice to know it's been carbonized. I gave a brief review in the Bryce Forum here on it. Yes now let's see Curious labs carbonize Poser, that would be nice, but I'd rather have them put all their efforts on Poser 5. James