monitor wont work. if lightning hits video, could video card have a short or something? i alternated two monitors and they have power just no signal & there are no software problems. The screw in inputs that go to the back of the computer for the blue monitor cord to the video card input where you actually screw the monitor into the back of the computer... the screw in inputs have screwed out of the back of the computer. i screwed them back obviously but still no signal. could the video card be fryed or anything else?