Also, are you running Internet Explorer 7?

the reason I ask is that I upgraded to IE7 on a machine with Norton Internet Security. There appears to be a conflict between those two apps that cause other programs to crash if the latter are CPU/memory intensive.

I removed IE 7 and no problems since then! There are threads on Google about this problem, if you want to check it out.

I have had few problems with Poser 7 - delete was slow but I've reduced the number of undos and that seems to have improved things. I agree with the posters above - it's a much better release than P5 or P6 were when they first came out.

Good luck
DD