The only way that has been posted on the boards so far to get rid ot this problem is to do a reinstall of Mac Tiger and SR1 again. There was a discussion over on RuntimeDNA. The only problem is that if you do a service release for Poser or have to reinstall Poser again then you are back to the same problem. I did this and it worked and the file dialog problem disappeared but now I seem to be having a problem with cameras. Don't know if it is caused by this or not.