Atikmdag Error with a twist

Mirack

I was getting the atikmdag error while playing games, then it started happening more and more just in windows, eventually my screen would get staticy and unreadable, I am now using onboard video with means no games, which I also don't get I have lots of ram and the onboard allocates 510mb for video.

Anyways everytime I plug in the card Raddeon HD2400 Pro 512mb, the screen gets so blurred the monitor disconnects, I have reformated, I have tryed with no OS installed, I have tried removing some ram, tried using old and new drivers, so I am convinced my card is fried with ATI telling me it's a Vista issue even though it won't work on any OS does the exact same thing.

Is there a way to resolve this and keep this card, or if I have to buy another one will this just keep happening, I have only had this card for about 6 months when it first happened.

Intel Dual COre 3.00
Kingston ddr 2048 ram * 2
500gb WD hdd
750gb Wd hdd
512mb Radeon 2400 HD pro