Save, save, save... unless you make a mistake. Then saving's bad. This problem with Poser locking up after working on it a while is something that has destroyed many of my projects. After a while, I just started saving every single time I moved something in the scene. Then when the stupid thing locks up, I don't have to worry about the hours of work put in beforehand. But saving does not aleviate the problem of program lockup. I'm glad to read yet again I am not alone in this frustrating problem. Hope to hear something official from CL soon on the fix!