The RadControls for ASP.NET AJAX are supported under the major mobile browsers. Please check the list of supported browsers
and verify if the one you are using is among them, as you have not specified under which one you have encountered the problem. I would also recommend upgrading your version of RadControls to the latest release (Q1 2012) .
If the problem persists after upgrading and your browser is included in the supported ones, please provide a more detailed description of your scenario, as well as reliable steps to reproduce the issue so that we can inspect it locally and suggest an according solution.
the Telerik team
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