I tested the behavior of the RadNotification in our online demos, which use the latest version of RadControls for ASP.NET AJAX, under Windows 8 with IE 10, but I did not encounter any problems as you can check in this short video
. Let me know if I am missing something required for reproducing it.
Note that I am mostly guessing as to what your setup is. Please, provide a fully working project and step by step instructions for replicating the problem with RadNotification. As for the other issues I would suggest reporting them, including the additional information mentioned above, in separate threads so that they can be investigated individually.
the Telerik team
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