If you installed PD originally and selected a less capable license (e.g. DataArchitect) at installation, then it would not have installed other model types except those supported by the license.
Better to install all components as a trial license and connect to your license later, especially if you upgrade or use different licenses from a floating license server.
This also helps when you apply patches, as only those installed components are patched.
For now, you might want to uninstall and reinstall PD. As you now have an Enterprise Architect license, you should get the option to install all components, otherwise, choose 'Trial' and add your license after install.
Chris
