danamo, I don't think they want it - I played around with porting it to Windows last year but had to give up as I didn't have enough time to figure everything out - it would be nice to be able to make Bryce extensions as Photoshop was allowing for a while. Quest, When I did the Tiffer project I noted that some members didn't have a clue as to how heightmapping works. I applaud your effort! - TJ 8:)