In SharePoint 2010 if a site is created with UI version 3 (The MOSS interface) and RadEditor is set as a feature for rich text fields from the site settings. When a page is edited and an additional Content Editor Webpart is added, after editing its content, the RadEditor's content is lost.

If you have an ASP.Net Dropdown list on a form and you use radFormDecorator, the dropdown list does not work correctly.  You can click the button to expand the dropdown list.  If you click the button again, the list should collapse, but it doesn't.  This is observed on IE9 and latest Firefox.  It is observable on your demo page at : http://demos.telerik.com/aspnet-ajax/formdecorator/examples/overview/defaultcs.aspx

HotFix Build: Telerik.Web.UI_2013_1_227_Dev_hotfix

RadButton is not responding as the DefaultButton property of a Panel