Do you use nview from nvidia .
Change your geforce driver to 40.72 .
Use a hotkey in nview to get your desktop to the tv .Buy a cordless mouse and eventually a keyboard too, you can use were the tv is , otherwise you will have problems to get the desktop back to your computer (can also be done by the hotkey ) .The only thing I cannot do is get the desktop on my tv and monitor at the same time . I tried everything in vain .