yup. I have 2 computers that i run poser5 on. my own is a p3 1.08 Ghz,256 sdram, riva tnt2 32 mb vid card..it runs well but the one I use at the office is P4 2.2 Ghz, 512 DDR ram, 64mb nvdia geforce Vid Card.it's definitely faster. I can render images with full props, materials settings plus the option of turning on quite a few reflections settings to the max! I rendered one of my images which was larger than 800X600 and it took only less than 5 minutes at 300dpi quality firefly engine renderer.. It's definitely all about the extra ram. and you should be running it on XP pro. there's no other choice. just imagine after 4 hours of rendering and your 96% complete with your render then it happens...your system freezes...windows 98se is good but it doesnt handle memories over 128mb pretty well. you could install apps that will help but still youre using system resources with another background app working while rendering.