MrT wrote:
I think you'll find that you have your IE10 in "compatibility mode" which amounts to IE7 (which we don't support) - hence error message.
Regards, Mark.
That was it.
Solution: Click on the torn piece of paper in the address bar to turn off Compatibility View for a given website. You'll have to do it again if you delete your browsing history. Supposedly Windows 8.1 will have a better universal control.