i just bought a 256mb agp x700 radeon. i put it in installed the drivers, but when i shut off the computer and turn it back on its says. video card POWER CORD not pluged in, please refer to "getting started". well THERE is NO spot for a power cord on the video card. so i dont know wtf that means. there is an install manuel but it only says uninstall ur drivers b4 installing, and says put it in blah blah and thats it. any advice?