Thanks for the tips, I do save the scenes and models. Does anyone know if there are any freeware programs that convert Truspace cob's into Bryce obp or a format that Bryce 3D can open. Formats that keep their meshes seperate like 3ds etc and not dxf that combine different colors into one so you have limited number of meshes to edit. (A warning if you use Win98 First edition, if your computer crashes during a rendering you loose your saved scenes and other file loaded or edited during that session. I lost a scene and other files and programs when W98a crashed.) Mark Askew markraskew@hotmail.com