I want to insert a bulleted list into a richtextbox at design time.  I use the MarkupEditor to get the list in and it displays the text with the proper formatting in the Text property but nothing shows up in the richtextbox itself.

Resolution: 
The feature was introduced in the new version(Q1 2015 SP1) of the control - RadRichTextEditor. Please use the new control instead the RadRichTextBox.