Well recently I turned my computer on and my monitor wouldn't get a signal. My motherboard had problems in the past, so I replaced it. I checked my monitor on another computer, and it worked fine. When I turn on the power all fans come on. Including the fan on my graphics card. Any idea what it could be? Here are specsGeforce 9800gt cardQ6600 processorBiostar g41 dvi motherboard4 gb of corsair ram