I use Bryce 5.0 on 256 mb SDRAM + Celeron 1.3 processor + 64 Mb Geforce 4MX + Win 98 Second Edition. I am using latest detonator drivers of Nvidia. I am using Direct X 8.1 and i always restart my machine before rendering an image or starting Bryce. I do not run any other application while running Bryce. Are 260000 polygons heavier than 256 mb can handle ? If i assign more virtual memory to Windows, will it solve the problem ? Thanx for your help buddies : )