Last night I left my PC on, when I came back to it this morning the monitor wouldn't respond. I restarted the computer and got some beeps but the same response for the monitor. I turn off the PC and the Monitor then try it again. PC starts up with no beeps monitor just sit there with the orange light on. If I turn off the monitor and turn it back on I get a "no signal" message. I opened the case and remove the video card and placed it back in the same slot, same thing. I connected my laptop to the monitor and and it fired up, so I know it's something with the computer. Please help.