I was just having this same problem.What you need is more ram, I just got my 500P3 up to 512 and although I havent got into bryce hard since then just fooled around with a bunch of high rez trees but what a difference. It was worth it. a bigger processor will help render faster too. And you might want to try something like FreeMemPro or FreeMem standard (which is free) Hope this helps you out a bit anyways N69