There should be no problems with the dashboard controls. As you can see they are working correctly in the demo. My guess would be that something in your application is causing problems, but I cannot investigate without looking at your code. If you can provide some more details about your application and possibly some code, I will try to find what is preventing the dashboard control from rendering correctly. However, please keep in mind that the DashBoard control from the demo is not specifically intended for usage outside of the demo and thus it's not tested outside of the context of the demo.
the Telerik team