Hello Edward Hanchett,
Thank you for contacting us. I cannot reproduce the problem using VS 2008 and the latest versions of our controls. Can you try the following: create a new project and see whether the tab problem is still present. If so, please send us the sample project (in order to be able to attach files you need to start a new support ticket). Thank you very much in advance.
Also do not hesitate to write me back if you have further questions.
the Telerik team
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