I am not aware of this problem and you are the first to report it. There aren't any changes in the content area rendering since Q3 2011 since now and the problem is really odd.
In order to help you we need reliable steps to reproduce it, a simple working project that demonstrates the issue, so that we can debug it. In the meantime, you can try to provide a live URL for online examination with IE developer toolbar.
Have you set the ContentAreaMode
property to DIV? If not set it and see whether the problem still persists. If the problem exists in DIV mode, set the property to iframe and test again.
Thank you in advance for your assistance.
the Telerik team
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