So your results on rendering speed are interesting. I used a file from http://www.gauchito.com/bryce/render_times/ to test Bryce5 render times. On an 850Mhz laptop with 256Meg of memory running under Windows ME, the render time was 7:55 under Bryce 5 and 6:52 under Bryce 4. This was using the standard antialiasing. Are you guys running standard AA or something else? In the less measurable category, it seems to take longer to access the file comands at the top of the screen. The 'close window' actions on the various labs also seem to be noticable slower. Except for the tree editor and some spit and polish, I'm wondering what I bought. I am interested in some of the features such as soft shadows and the ultra-high resolution rendering and network rendering, so I am willing to accept the shortcomings in this release.