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I found a document 1512567.1 from MOS that can explain the error sourced from a bug and can be worked around by:
...Wait a minute, if it is caused by compatibility problem of the browser, there is no need to change your Internet Explorer, just set "Compatibility View" in your IE.
Please use another browser than Internet Explorer 9 and Firefox 10.
Find the path to set compatibility view in IE.
Add the site that you want to have a compatibility view.
Now, you can try to switchover again. I tried, it succeeded.