Adding a GeForce 8400 PCIe video card to a ECS P4M900T mobo - help. Help! HELP!
 

Hi all. What should be the simplest of tasks is sending me crazy. I have a PC based on an ECS P4M900T-M2 motherboard. I've been using it for about a year using the on-board GPU. But now I want to add a second monitor so I bought a PNY 8400GS PCIe card to go into the PCIe slot on the m/board....