Melanie- I'm with you. I personally think it depends a lot on the machine, and the users disposition, and how they maintain there HD. I'm running 98se on a 633mhg machine that I had built (never do that again!). When I started with Poser I had a ton of problems. I formated and rebuilt my HD and now its been purring along like a kitten. Lots of space for a swap drive.