I haven't read anything to this effect yet but here's just my $.02US for the Mac beta testers out there: When we were beta testing LipSinc's Mimic for Macintosh, they informed us that you could not exceed a 64 character path name for either their Mimic or Curious Labs' Poser products. As soon as I moved the Mimic folder to either the Desktop or to a higher level on the hard drive, all file access problems by Mimic and/or Poser disappeared.