We are dynamically creating web pages using VB .Net 4.5. We are placing the radeditor (we are using Telerik.Web.UI.dll version 2013.1.417.45 which I believe is corresponds to RadControls for ASP.NET AJAX Q1 2013 SP2) on the pages. On the first page if we perform a spell check and there are no errors we can continue to the second page that is again dynamically created with an instance of the radeditor. However, if there was an error that the spell check found then the page will not continue to the next page. One item to note, if an error is found and we try to continue to a second page without the editor it works, however when trying to continue to a third page that has the editor it will not load the page. We also have noted this behavior if just inserting a symbol into the editor. Any ideas?