I ended up going back to my Poser 4 Discs and installing from there. So now my screen is full o' snakes. =) Wierd...the extra Poser 5 Content .dmg I downloaded didn't contain the Rattler either. Now I'm wondering if the upgrade "Poser 4 to Poser 5" download doesn't contain all the previous characters and props. MarianneR, is your Mac P5 an upgrade version? Again - thanks to everyone for posting.