Help My Asus rog matrix platinum Hd7970 Has stoped working..all I am getting Is black screen says no signal.. The green led power lights are on . The Asus is light on the side . Fans are spining .. PC seemed to louse driver and when I tryed to reload then ..it just went to Black screen ...now I can only get PC To work by disconnecting the card ???? Any one help ..could it have Been windows ten update????