Yeah, all I have is the demo version. It's SLOW on my 1gig p3 with 384megs ram. I hear the full version is better. But from the demo I'm afraid that the full version will be too slow also on my set-up. I really like the new features but even when rendering with old B4 style settings the demo just sits there mocking me! :) Heck even loading/saving files that B4 did in a snap take forever in the demo.