My buddy gave me his Dell Dimension 8300 a week ago.. but I noticed that I couldn't plug the blue wire from the back of the cpu to the monitor. I was told to purchase a new graphics card with that blue slot available. So I purchased one off of ebay. The model is a (Dell 9y452). Then someone said I need to install a specific driver so my screen will stop chopping when I scroll. Ive tried to do that but I cant figure it out. I've tried to load several driver and they all end with an error message. What should I do?