I am trying to connect my new HP A450n to my Dell 20" flat panel. I\nhave the cord that came with the Dell. It' has white connectors on\nboth ends and they are the same type connector. I can locate the DVI\ninput on both the CPU and the monitor, but when I connect them, I get\na blank screen or a VGA test screen. What am I doing wrong? Does the\nmonitor need to be "set up" for DVI or maybe it's the CPU? Can anyone\nhelp me?