Nah, I didn't say it wouldn't work :) I said the software hadn't been optimised. Basically I found out that there wouldn't be any speed increase for rendering etc.. from Poser4 to Poser5 using a P4 machine. I have just bought Poser5 too :) I was just letting everyone know what Curious Labs told me.. encase people were getting there hopes up about an increase in speed. :)