Lithunwrap has a max poly-count limit - that's probably what hung your version. I like it because of that, actually; I do think that the last thing you do before you export your mesh, if you're working on Poser stuff, is to reduce the mesh/polycount. If nothing else, it's tidier, and it's better for those still on medium to low-end systems (In addition to the Poser render/getting a move on times the more mesh you have in your image) ~S