Well, both my drives are formatted as NTFS, and the install worked okay for me. So the file system shouldn't be the problem. However, neither of my drives are firewire, so I can't say what effect that would have. I always cancel the search for poser at the start of the install and direct it to the location of my poser files, which is C:graphicscuriouslabsPoser 4. I don't usually go beyond Poser 4 when I browse to where my files are located. In the beard case, I did go all the way to the file and even selected it, because it seemed that that's what the installer wanted me to do. (I usually cancel the search, because it seems to what to search every drive on my system, even CD drives if there are disks in them. That's why I cancel. It just takes too long to let it search itself.)