If you run Poser 4 in 9 and use Quicktime 6 it will cause a freeze. At least on a G4 400 circa 2000 it will. Havent tried p4 in Classic (with QT6) and dont want to. I could be animating when Im doing that, if I wanted to spend hours fixing my system Id have... Im sure Im not the only one whose computer freezes after doing a QT6 render. There was a post about this once but I cant find it.