Hello I plugged the Zotac 550 Ti in to my old M2N4-SLI Motherboard and when it booted up my monitor screen was covered in hundreds of horizontal lines roughly a 1cm long and ranging in colour from white to teal to blue. So I plugged back in my old 9800 GTX+ which works fine and waited till I got a new motherboard cause i wanted to get one anyway. So I got a M5A97 and it is doing the same thing. Is the video card completely shot or could it be something else? I got it about 3 weeks ago, so far only tried it with the two motherboards, has not worked once yet.