Thanks Tim,

so far the Telerik RadRichTextBox control looks good but I do have some issues with it. Hopefully the Telerik support can get me through them.

The first problem is the Wizard crashes when I drop the control on a MM.NET window, but works fine on a plain .NET window. The next is probably just a XAML setting that I need to get right to get the status bar to display and stay in the right position and the document area to scroll when I type text in the bottom line. Right now the status bar disappears and so does the text that I type.

>>Hi,
>>
>>what third party WPF RichTextBox control would you recommend to work with Mere Mortals .NET 4.0?
>
>I second Kevin's recommendation. I have had better results with the Telerik controls than others I used.