Kate, Rob & others: "I feel your pain." I've been there before. Ouch, Kate, your computer must have been old if it couldn't handle your larger hard drive. Did the manual give you any clues about that situation? If your computer was that old, then maybe your operating system couldn't handle the larger hard drive either?! How in the heck could your hard drive work one moment and not the next? Did you have a bad hard drive? *** Hey folks, we can minimize lots of these problems. I backup my Poser/Runtime folder. If anything goes wrong, I can just reinstall Posr and bring back the Runtime folder on top of the new one. It works like a charm. Ron