Why would a graphics card cause the wireless internet not to be detected?

I bought a graphics card yesterday and installed it in my desktop. Previously I was using the inbuilt graphics thing on the motherboard. The problem is that as soon as the graphics card is installed, the computer suddenly stops detecting the wireless network in my house. My laptop can still detect it though from the same location. Could the graphics card be causing interference, or something?


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Matrox Graphics |
Graphics Matrox