No matter what, I prefer 5 over 4. My only problem is a slowdown in the work areas when you get a load of objects in, such as would happen using version 4 on a much slower machine. I use a 1 gig machine with 512 megs, so 4 flew along in the building stage with that. 5 slows down there, but I still get good render times and find the output a bit sharper and richer. Not sure if that's a real observation of imaginary, but it does seem that my textues appear richer. I love the trees, just burying the root mass so only a peek shows here and there. I also shave off some trunk swellings in post, but love those trees and the variations. Anyway, that's a few pennies worth of trivia. Walt "Mike"