I've had the memory bug in Pro Pack and Poser 5--not so much lately, and though the memory grows dim, I'm pretty sure I had it in Poser 4. I used to call it, Poser's getting tired. Happened after about an hour or so of work-- sometimes hour and a half. You could tell when the lbraries and other stuff started to get a bit wonky. Shoes came out of conformation, tools were activated without being touched, sometimes just comeing near em. I'd usually save, under another name, just in case it was already corrupted, try a fast render in the preview window-- I did this just a few days ago for the Namihei pic,not an overly complicated setup. But I had tried a slew of lighting changes. And then I got out while the getting was good. So. . . Poser's still getting tired, huh? Not terribly surprised. I'll be very pleasantly surprised if and when they fix it. We complained enough about P5, no improvement really there-- ok, we got a little longer before fatigue set in, but no real change. There seems to be a tendency towards real change in Poser 6. But whadda I know? I just opened the box. Emily