I'm new to Vue4, less than two weeks using it under XP Home on a P4 1.7GHz with 512MB RAM. My pc is over a year old, an off the shelf HP 7966, no hardware changes, so it's nothing special. Vue4 seems very easy on my system (compared to Bryce and Poser 5) and is not prone to crash or it would have by now. Up till yesterday I was running without opengl on due to not having compatible Nvidia drivers installed. I'll know soon if Vue is as stable with opengl on as running without it. So far it looks good. Anyway, I know I can turn it off and be fine.