I just changed the vidcard in my old computer to a 5200 from a 6800. I'm now setting up the old computer for my brother. We have a monitor for him, and we tested it out with the computer while it had the 6800 and everything went smoothly. So today I hook it up with the 5200 and when I turn it on I see the windows loading screen, then the monitor turns off and the light on it starts blinking. When I click the menu button it turns on and says "Out of Range" and then it said something to the effect of PC configured correctly at the bottom. There's also a Red, White, and Blue Rectangle in the middle. What's going on?