I'm using a RadEditor to display a very large content - somthing that can go up to 10 000 words, which represent 20 or so pages. I used to work with the Telelerik for ASP.NET components, and I converted the app to the ASP.NET for ajax components. The page is using a RadEditor with sliding zone, panel bars and ajax manager. The problem is that everytime a postback is made, it seems that the editor is reloading itself and for a few seconds, the application is completely freezed. And that postback time is slowing depending on the text length, when the editor is empty, there's no latency. I didn't have that with the old suite and wondered how I could bypass that; I tried to define the viewstate property to false, different ajax configurations, but nothing changed. What can I do to prevent the editor to reload on the postback ?