RichTextBox Formatting Not Work

Hello Kevin,

I am afraid that I do not understand what exactly you mean by saying that the text formatting does not work. Is it that the cursor is not visible? If this is the case, you could set the focus to RadRichTextBox and the cursor will show up: 

Regarding the part with the default tab, the first item in the Items collection is the default selected RibbonTab. However, there is an ability to change that by setting the RadRibbonTab's IsSelected property. Is it possible that you have set this property to true for the "Design" tab?

And regarding the text at the top, it could be changed with RadRibbonView.ApplicationName property as follows: 

If my assumptions for the observed behaviour are not correct, please provide more details like steps to reproduce, what is the expected result and what is the actual result instead. It would be helpful if you could send us a sample project, so we could investigate it further.

Regards,
Aylin
Telerik