Did you delete your Poser settings and preference files before restarting it? These are stored in your user profile, and are not deleted when you uninstall Poser. Poser will create new, default files when you restart it after deleting them.

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)