(Sorry for the many posts...) Another installation note: Other useful steps to take to insure a solid system prior to installation: * C drive / Properties / Tools / Error Checking - Check Now. * run a Registry Checker, such as that included in Norton Utilities. * if you have TWO disk drives, consider installing Poser on the SECOND drive, instead of the boot drive. ("D:/whatever/Poser5") (Just in case Interlok still does SOMETHING to the boot sector, it is much safer if that isn't the boot sector of your boot drive.)