It works fine as I was doing my assignment and then the monitor won't start.. tried everything but it seems that the problem is still there.. what should I do.. :S

Unplug from wall wait 2 min plug in again then reconnect to computer sometimes it's a lockup of screen saver or energy saver

What you need to do is if the fuse has gone or the wiring once if these don't work it might be a good idea to get an computer engineer or get a cheap one for the time being for it.

Check your cable connections unplug and replug at both ends then restart if this dode not work try a different monitor to dee if it is the monitor or the computer.

I had a monitor that would go black because there was a loose wire inside the cable, which was crimped from being at too much of an angle. I had to wiggle it to a more straight down position. Later replaced it.