Hello, When I started my computer today without having installed any new things to my computer I heard 1 long beep and 2 short and my screen didn't get any contact. It just said "NO ANALOG SIGNAL".I read that it was a problem with my video card. I plugged it out and in and I got away with the beeps(which probably means that my computer find contact with it), but the screen is still black and it says: "NO ANALOG SIGNAL". I have had my computer for maybe a year just,no new graphic cards or anything like that. Is there anything I can do?