until either someone at E-On or CuriousLabs does something about it ... Vue4 will require poser4 to be on one's machine. Apparently, it is a trivial thing to patch since CL' drop their wacky registration thingy ... but politics and all are preventing us from enjoying a patch. This is a rather hot topic at E-onsoftware's Knowlegebase and Feedback areas. Try a search over there for "poser 5 vue 4" or some similar type search... it's wacky really ;-)