The other reason poser freezes are the new hirestextures, specially with the hires bumpmaps.add some hair that needs much memory( daz updo) and some clothes and it will happen. Im on a 1 ghz athlon with 380 mb and the only solution for me , is to modify the cr2 files or the matfiles,so that the bumpmaps for the body are not loaded.If i really need them , i cam load them manually.