We have never experienced such an issue, but I have a few suggestions:
- Make sure that you have added Telerik.Windows.Controls assembly
- Make sure you haven't started a WPF project. Make a new project to try again, be sure it is Silverlight 2.
- After adding the references to our .DLLs build the project.
If this doesn't help please provide some more info:
- Did you get some kind of error when you added references or when you tried to build
- What happens If you load the project you created in VS2008?
- If you try to use one of our controls by directly writing in the xaml, will you get an error or everything will be working fine.
the Telerik team