Missing Notes Inspector
 

I recently downloaded OmniGraffle 5 and purchased a license. After looking at the manual, I realized I do not see my Notes Inspector. There is a screenshot on the Omni Group website that shows it in the Properties Inspector. I have the other 3 items (Geometry, Connections, Action) but no Notes.

Any Suggestions?

Mac OS X 10.5.2 on a year old Macbook Pro (2.33 GHz Intel Core 2 Duo) with 2 GB of Ram.

The Note Inspector is a feature of OmniGraffle Professional, and isn't in the standard version of the application.

So, that would be why it's missing.