No video signal to monitor

Hello,
I am trying to repair a Gateway sx2370-ur30p computer. It was working fine and the the video signal out quit working. I tried the monitor and the cable with my laptop and they work fine. I ordered a evga geforce 210 graphics card and installed it into the pci-e slot and started the computer as per the instructions on evga's website and I still have no video out. I cant install the drivers without being able to see the screen. Thanks for any help you can give me.