Ok, I'm installing OSX for a secund chance. This time I upgraded my G4 400 to a dual 500. The difference on speed? none, I used Bryce 5 with os 9.2.2, (G4 400), then I used it with the dual 500 and now with OSX and the dual 500 and the rendering speed is just the same. Worst, my video ram is less now. I'm using the latest OSX (not the latest upgrade yet) and I do not see the "power" in it. I'm I doing something wrong? I know Bryce 5 is slow but should be faster now. Photoshop works a bit faster, I can play DVD, quicktimes, at same smoothly, but why shoul I have 2 movies playing at same time? I can see a 10% impruvment at most, wich is not a good deal for me. Dr. Evil said once: "I can't see the cheese in the toast!"