Poser is pretty cool in that the models and textures are visible just by placing them in the proper directory structure. As they say above, reinstalling is probably all you need to do. But, to be safe, (if you have enuf room) you could save the entire runtime structure. Then you could copy it back after the reinstallation. A really cool program I use for directory synchronization is FileSync. Shareware. You can see it at http://www.fileware.com/