Thanks for the info, A_Sunbeam. I'm on Tiger and getting quite frustrated with the continual beachball-spinning delays in the Preview almost every time I change anything. The Material Room is even worse. Using a non-textured preview mode helps a bit, but not much.

(For PC users' benefit, the spinning beachball is the Mac equivalent of the egg timer).

Looking at the Activity Monitor, Poser 8 uses much more CPU than 7 or Pro, peaking every time a change is made, even just moving a light or a camera. I think Poser 8 must be doing lots of new things in the background.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)