We were not able to reproduce the issue you mentioned. The version you are using is rather old and RadRichTextBox has evolved a lot since then; we would advice to try upgrading to newer version of the control and check if the issue is reproducible there. If the problem persists, please try to isolate it in a sample project and send it to us for further investigation.
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for WPF.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely.
Sign up for Free application insights >>