It depends why it's changing. Windows default settings dims the display if you run a laptop off just the internal battery (to conserve power). You can change the settings, but you'll shorten your battery's working time between charges.
the blue screen of death
Blue Screen Of Death
Blue Screen Of Death or BSOD
A STOP Error, also called a Blue Screen of Death, will appear when an issue is so serious that Windows must stop completely. When a stop error just like Stop Error 7b appears on the computer, you will get a blue screen and fail to do anything else on the PC.
you can't trust me ive tried everything
Stop Error
Well that isn't a problem with your box , its a problem with the Television set your currently using.
Pop up Blocker
see this link http://itsvista.com/2007/06/itsvista-tip-60-hide-a-persistant-on-screen-keyboard-in-vista/
How do you stop an ibm monitor screen from rolling
HI, I have windows 7 ultimate. What happens is when your windows is not genuine, every single time your log in it pops saying this windows is not genuine. Also permanently in the right hand corner of your screen your will see build ---- This copy of windows is not genuine. And you can not remove it by changing the background. And every 15 minutes and error pops up saying this windows is not genuine. If you use Microsoft security essentials it will stop working to. As you can see it is really annoying. But if you get this there is a thing called RemoveWAT it will remove the watermark and everything. And it basically goes back to normal.
A stop error, or a "blue screen of death", happens in windows when there is some sort of hardware problem. The computer automatically shuts itself off to prevent further damage.