You are the first to report such problem and at this point, although I cannot say what exactly is causing it, I am not completely sure that it is related to our controls. What I see from the error messages is that for some reason, the Ajax's scripts are not sent from the server to the client - this is indicated by the first 2 errors.
The third error, that mentions Telerik, is raised by the fact that our controls (that are using MS AJAX's scripts) cannot find these scripts ("Cannot set property 'scriptsFailed' of undefined") - so our scripts are loaded, but the framework's ones are missing.
This being said, I would recommend you to investigate why the MS AJAX's scripts are not loaded - for example you could check this article
. Once this problem is solved, our controls will work as well.
the Telerik team
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