Unfortunately, we were not able to reproduce that behavior in our test environment. Are you experiencing that issue with other JustCode dialogs, e.g. Send Feedback, JustCode Options, etc.? It might be of help if you provide us with a list of other extensions to VS2010 you have, if any.
We're planning on releasing an internal build in the following week or two, so you might try turning on the internal build option ("Include internal builds when checking for updates") in the JustCode Options General page, and let us know whether the problem persists when the dialog pops up again, once the new internal build is available.
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the Telerik team
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