With all 30 seconds of experience with Poser 6 I can say that it has really come a long way and yet remains familiar. I just upgraded from Pro Pack and what a dream to not have to fire up OS 9 in order to run Poser. The middle mouse button now functions and overall seems to run much faster. Haven't gotten far enough to experience the "hangs" mentioned but can already see and fee lots of improvements. G5 dual 2Ghz 1.5 gig o' RAM