I was about to report that it has been extremely stable for me. I've had one crash so far: In the material room, pressing buttons too fast. (like a guess playing clue) Lesson I've learned long ago: Don't press buttons too fast. Wait for Poser to finish what it's working on. The other thing is it seems fast on start up, but slow at other more mundane tasks. Flipping materials seems very slow. Generally, ok so far.