What happens, if you render in Poser first? Is the texture found in Poser? If yes, after rendering in Poser, does Vue find the texture, too? (The reason I ask that is, that Poser stores the path information it gets from the scene file (or library files) in its texture nodes until it has to actually load the map. That can be done by rendering in Poser, switching preview mode to texture shaded or via a Python command in Poser 7 and later.)