Occasionally, I got the same message Sys.WebForms.PageRequestManagerParserErrorException:: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
Details: Error Parsing near 'Telerik.Web.UI.2008.'. I thought it only happened on Telerik 2007 version. Are you sure it caused by my version is still a trial version one or something else ?
John Hadikusumo