I had the EXACT same problem. It is because it is set as a "clone" rather than a "secondary". Enter desktop properties>>Settings
Click on the display that says 2 on it. Then click "extend my desktop to this moniter". Also while your here you can choose where the TV and moniter are spatially by clicking and dragging them to position them.
Then click advanced>>displays and make sure that the TV is set to display 2 and the moniter as display 1.
That should fix it, let me know.
Q6600 G0 @ 3.80ghz
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