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.

If anyone can help answer this I would be forever thankful =)

When I'm not using my computer I turn off the monitor. Recently though, sometimes when I turn the monitor back on it says "No input" and it then gos to sleep, but the computer itself is still running. I then have to restart the computer by holding the button on the tower. Does anyone know what's going on here? And how I can help this?

It only started doing this over the past couple months or so (I think) and it seems to be happening more often recently.