Video card problem

it all started this morning when i tried to turn on my pc. to my horrow the video card stopped wroking. i figure its a pretty elementary problem since it shows the dell logo and the windows loading screen but after that it just turns blank and the little green light on the monitor becomes orange. the bios is all fine and ive tried setting it to integrated as well. now heres the twist…it works on integrated, but will not turn on if the video card is in the slot. so if i take the video card out it will start on the integrated card but not if its inside…and its driving me insane.