No problem, the plugin installer is looking for 3DSmax in its default location, you have it in the root C: directory which is why the plugin can't find it. As the plugin installer is quite simple, it can't cope with this. I can't remember whether there was a file you had to download from Curious labs to solve the problem, or if it was just instructions on how to get around it. Now that I have Poser 5, I have got rid of Poser Pro pack so don't currently have the plugin files on my machine. Can anyone say what you have to do? I'll have a look around my old backups and see If I can find what to do. It'll have to wait until tommorrow though.