Why does my monitor unexpectedly shut off?

I bought a new computer a few weeks ago. It is a Dell. Just the other day when I got home from work, the monitor was shut off. The harddrive light was still on and running. I turned the monitor button on and it stated "entering power save mode"...

When I play PC games, after a while my monitor shuts off. The light that is normally green on the monitor goes to orange and the computer itself stays on. This rarely happens with WoW and Warcraft III but it is very frequent when I play Call of Duty...

I had a PIII 450 hp system with hp 15" color monitor. I recently upgraded it to AMD sempron 2500+ with ASUS mother board. I installed win xp Media center edition. I work with the system for some time(random) and shut down it. It takes 10 minutes...

Alright, so I have this hannspree HF237 that goes completely blank whenever i launch a game. But im beginning to think its a GPU problem because this monitor will work when i launch the same games on another computer. Another twist however is that im...

When using the computer my monitor will just shut itself off, when i press the power button to bring it back up it shows a box thats says its working properly. I have to restart my computer to turn it back on. how do i fix this? Also sometimes when turning...

Almost all electrical appliances have on/off facility using the same button. But in a computer CPU is switched on but not switched off for a normal shut down.

Why does my computer keep on shutting down on its own, it say power saving enable monitor will shut down in a few seconds, I think someone put it on that on my computer for it to save power, How can i get it off please i hate this, i keep loosing my...

Every time i turn off my monitor at night when i get up the internet does not work. But if i leave it on all of the time i don't have problems. Even if i shut it off for five mins it stops working? why?

I recently installed the Window XP (Service Pack 2) and when i restarted my computer and when i tried to turn off my monitor, it just won't turn off, i also tried to adjust the screen by using the button's on the monitor, it dosne't work. Does anybody...