Hi David Walton,
Thank you for this report.
Unfortunately we wasn't able to reproduce the described issue on our demo
We tested it with Windows XP SP3, IE 8 (8.0.6001.18702) and SL plug-in version 4.0.50826.0 and it is working as expected. Can you please share with us your version of the above?
Can you please try to reproduce it in our online demo?
If you encounter this problem on your own project it will be really helpful if you can send us your project in order to identify the problem.
Thank you in advance.
the Telerik team
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