Good news though - there is a work-around... read on.
A great new feature in 7.1 was the ability to add formatted text to the notes of diagrams and other elements.
However, I noticed that when you generate RTF documentation for the diagram the formatting appeared in the document but when you examined the diagram properties again you lost the formatting.
Very irritating!
But fear not, there is a work around!
Before you generate the RTF documentation close all diagram windows and your formatting will be preserved!
I reported the bug to Sparx Systems so hopefully we'll see a patch for it soon.