@LonCray: A suggestion... 1. Re-install Poser (again, completely, from scratch, delete existing Poser and runtime 1st). 2. DON'T copy your existing runtime. Instead, start up Poser, then try to create an alternative runtime pointing to the one you want to use. If it works, then ignore the problem and happily continue on your merry way.. If it doesn't work (Poser crashes or misbehaves in some way), then the problem is with your existing runtime.... (Oh, and if there ARE problems, DON'T save, and try to get back to the default Runtime before exiting). This will, at least, help narrow down the suspect area.. Also... There are some products/freebies available that install into folders with names that contain reserved ".xml" characters. Since Poser saves your library set-up in XML format, these characters can cause the xml parser to fail on startup. Which (depending on what the character is) can cause Poser to fail to load... I'm not an XML expert, so I cannot advise further there.. Cheers, Diolma