hia Brycetech Your results are not flawed it was that you did not include Bryce 5's ability to render Bryce 5 scenes. I tried to explain above what was used to include that into your test. You are completely 100% correct Bryce 5 renders Bryce 4 scenes slower. The mistake lies in that you didn't include Bryce 5 scenes into your equation. I hope you don't take it the wrong way and will try out what I did. I have tried this on both an intel win2k system and a athlon win2k system. It would be great if you could try on win 98 or me. Griggs