Sorry to hear you have such problems. File upload dialog should be working fine with latest release.
Can you give me more information if anything changed in your system setup in the meanwhile? Like windows updates, or upgrade of Internet Explorer?
Are you using Internet Explorer 8 or different? Can you confirm that the upload dialog does not work not only in IE, but in other browsers too?
Also I have attached a simple generic test for handling upload dialog - can you copy it to a Test Studio test project, restart the project and confirm it executes successfully at your end?
All the best,
the Telerik team
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