Please fully reload the page in Chrome and you shouldn't experience the problem. This is easiest done by pressing Ctrl+F5 after loading it. Please accept my apologies for the inconvenience.
All the best,
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed