First I'd like to confirm which version of Test Studio you're using. This forum is for the Framework in which you craft tests entirely in code. However you mention you "captured a test with IE9," implying you recorded through the UI of our Test Studio Standalone version or Visual Studio plugin.
Either way, it's tough too say what the issue is without more information. Let's start with the error log and if you're testing against a public site, we'd like to reproduce the issue. If you're using the Framework, please include the code you're using. If you're using one of the Test Studio versions with a GUI, please include a copy of your test.
the Telerik team