Occasionally, a pz3 from p5 will glitch (poses change axis or reset) when loading into p4 and vice versa. Only had it happen in heavy scenes though, (more than 4 millenium characters loaded) Basically, save before and after you do anything, don't use p4 light sets, and make sure you run the "correct reference" util across you library to sort out hardcoded library link problems, "file not found" is a bitch. Also, don't use V3 from a linked runtime. She has to be installed (and untouched) into the base p5 runtime to work properly. Don't use Mats. later jb