PJF: I just downloaded the B5 demo from Corel's site and I am shocked to put it mildly. Here's a post I sent to the Bryce Forum group. I am getting very different results. ================== I am still waiting for my copy of Bryce 5 to arrive. Meanwhile I have downloaded the trial version from Corel. Several people have complained that it is slower than Bryce 4 so this is the first thing I checked. I must say that I am hugely disappointed! While others are complaining that B5 is about 10% slower on the PC it is much worse for me. I'm hoping I am overlooking some stupidly simple point. First the conditions: I am using an IBM notebook, PIII 650 mhz with 192 ram. I tested with 3 B4 files. The first contains a large irregular glass object. B4 renders a 400x300 in 7:57 while B5 takes 16:44. That's a time increase of 110.48%. The second contains very little transparency and is 400x300. B4 takes 1:59 and B5 takes 3:14- a 63.02% increase. The last one has no transparency at 580x480. B4 is 0:19. B5 is 0:37, 94.73% slower. I noted that the reported render statistics are not the same between B4 and B5 outputs. Each was rendered with normal antialiasing. I also noticed that accessing B5 menus is slightly sluggish compared to B4. I am particularly concerned that my time differences are so much poorer than others have reported. Perhaps the demo version, aside from being a demo, is not the same as the shipping version. As it stands even if I use network rendering with 2 computers I will still be substantially slower than when using B4. Anybody have any suggestions or comments?