well its a matter of scale...Carrara seems to poop out when you start modeling in anything bigger than inches. I have been useing the p3 500 with 500megs of ram @ work and it just dogs out with a large sphere. @ home I have an athlon 900 with 256megs of ram...maybe I can retry it there. I think the computer here only has an 8meg video card while I have the Geforce at home...