Attached Link: http://www.renderosity.com/messages.ez?Form.ShowMessage=1089134

Have you tried ctrl-alt-del after the bug, then reboot your machine, then try again? You may be at the max for the FireFly engine, or maybe not. Lately when I've been plagued with these kinds of freezes-- much smaller scenes-- the computer reboot has helped, sometimes. Also, have you defragged recently? Any Poser doesn't do work with dual processors so if you were thinking of upgrading that way for P5, don't bother. Another possibility is the Environment Creator lights sold at DAZ. I haven't tried them yet, but people who have say they render beautifully in P5 with either Firefly or P4 renderer. At $30, it's cheaper than a computer upgrade, if they work, of course. They create their own lights so are not dependant on Poser's buggy light set-up. And you can translate older light set ups into the Environment lights. I include the url for the discussion in this forum. As I say, I haven't had time to try them myself, but I plan to, and they might be a work around. Emily