How do I make the screen of my Dell Inspiron brighter?

[T A Y L O R]

I'm using my stepmom's Dell and I can't figure out how to make the screen brighter. It's not a brand new Dell - it's a couple of years old - and I've tried hitting the arrows that have the little brightness symbol on it, but nothing is happening. I don't think there is anything wrong with the laptop - I just haven't figured it all out yet.Help would be so appreciated.

[ferrari]

go to "start" then "control panel" then a wizerd will help u

[Frederico Ferrari]

Hold down your Fn (function key), then simultaneously tap on the up or down arrows (to increase or decrease the brightness of your screen).