So my computer started having those problems earlier this week where all of a sudden nothing would show up on the monitor except for "VGA input : No Signal" and then the monitor goes to sleep. Before all I'd have to do is restart the computer to get a picture on the monitor. But today when I restarted my computer after this happened still nothing appeared on the monitor. I don't think that the computer is fully booting because it doesn't make as much noise when it's booted up. Also the lights on the keyboard and mouse don't light up.