Dell Latitude D631 is not bright aenough to see. How can i brighten it?

I have a Dell Latitude D631. Currently there is a fault with the monitor. The screen is almost completely black but can just about see it. Is there a way I can brighten the laptop screen manually?Dell Latitude D631 is not bright aenough to see. How can i brighten it?In the bios, set it so you can manually change the brightness (I forgot the name they use). Then you can use Fn + Up Arrow to increase brightness.Dell Latitude D631 is not bright aenough to see. How can i brighten it?are you Vista