Fantastic card, playing BF3 at ultra settings everything was brilliant, then after about an hour I hear a click and the screen goes blank 
Restarted the pc and everything is powering up, but no display, fans on the card are spinning but no output.
I carefully removed the card and installed my old ATI XT2900 and everything is well again.
I then removed the AMD drivers and reinstalled my GTX 480, and all is ok.
Am I really this unlucky.
Help.

Restarted the pc and everything is powering up, but no display, fans on the card are spinning but no output.
I carefully removed the card and installed my old ATI XT2900 and everything is well again.
I then removed the AMD drivers and reinstalled my GTX 480, and all is ok.
Am I really this unlucky.
Help.