I've yet to upgrade from release 3 of poser 5 to release 4.1 due to the negative feedback when it was first released.
I've found release 3 to be stable on my P4 1.3 GH system and the only real complaint is that it takes a long time to load and save.
So my question(s) is(are):
Is release 4.1 stable?
What are the real advantages of Rel 4.1 over Rel 3?
Does 4.1 load faster than Rel 3? (Some of my PZ3 files are more than 160 meg)
What are your experiences with Rel 4.1