Thank you both for writing.
I just want to add something to this discussion. After reinstalling Visual Studio 2008/2010, please make sure that they both are not running while Telerik controls are being installed. Here is a help article
describing the installation process.
Let me know if you need further assistance.
the Telerik team
Registration for Q1 2011 What’s New Webinar Week is now open. Mark your calendar for the week starting March 21st and book your seat
for a walk through all the exciting stuff we ship with the new release!