Right in the middle of a render, so I can't check my preview settings. But I found under prior versions of Poser if I cut the number of under do's down, I have P8 set to 4 and the number of renders to cache I have P8 set to 2, it helps conserve memory usage. I believe the default undo's is 10, which is a way more then I will ever use, that is why I have it at a much lower setting. Can't remember the render cache settings. But typically I do a render and want to compare it with the last one, not a bunch of previous renders. Might try lowering those numbers and see if that helps.

Gary

"Those who lose themselves in a passion lose less than those who lose their passion"