I have a PC with an ASUS M4A78-EM motherboard which includes integrated video. I also have Radeon HD5670 that I want to use for an upgrade. When I install the video card and boot the machine all I get a message that my monitor cannot detect any video input even if I switch back to the video output from the motherboard. I'm at a loss as what to do next, anybody ever run into something similar?

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