Ha we've obviously got a North Wilts Poser user group here Narsil and Raven! I agree about the slowness reports_ I was happily rendering away (AMD processor) skipping along_ and thought I should try the firefly render_only to find I was using that already!! The P4 renderer was a tadd quiker still. Admittedly this was with a default figure with no dynamic hair or cloth. I too followed advice of our US trailblazers and defragged prior to install. I've had some of the freeze ups with changing rooms too quick but not to the degree I had feared from the early posts. Still early days and at present I'm just checking it does all the things ProPak does.