I have only had Poser crash once, which was due to having an audio program running at the same time. It screams, it howls, and it's doing everything I need, fast, and without problems. It even loads the entire starship Magellan model from IW3d without even batting an eye, along with 2 Mike's, 1 Vicky, and half a dozen P4 figures at once. Dynamic Cloth is the only thing that takes a while to calculate so far. I realize this is probably an exception - I'm on a 2Ghz system with plenty of RAM and an 8MB buffer on an 80GB 7200rpm hard drive - so I've got a hotrodded system...