While I was developing my latest item I had P5 open continuously for over a week. I wish I had been keeping track of exactly how long it ran. It had produced over 600 renders loaded and deleted countless figures, textures and props. Since I was working with dynamic cloth I had it run dozens of cloth simulations and rendered two 240 frame animations. What finally croaked it was when I tried to import a poser scene that had a cloth sim with the same name as the one in the current document.... Just can't complain about 5P stability any more. I seldom use the face room, dyn hair, or the content room. This may be a clue. Win 2K, P4/1.8, 512 RDRAM. and I run tons of stuff aong with poser. Nerd