My students beta'd the Mac product, and it works fine in OS 9, 9.1, 9.2, 9.2.2, 10.1, and 10.1.2. Make sure that you do not exceed the 64-character path limit. The best way to install MacMimic is to put it on the highest directory level - not the Desktop, but in the main Macintosh HD folder, e.g., Macintosh HD:Mimic It is also best to do the same thing with your Poser install. And I think you already know that you have to keep the CD in at all times. No, it does not work with either Virtual PC v3 or v4. One last item - make sure you are using the latest CarbonLib extension. -scara