Can you try to create a blank Index.aspx physical page in the root of your website, and then go to IIS and add the Index.aspx page to the list of default documents for your website? This should do the trick.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.