I have no FN key

I have another question. Apparently, I need a FN key to adjust the brightness on my dell latitude E6400 laptop computer. I do not see some of the keys that have a little "Sun" on them and there are 2, one w / an arrow "high" and the other with a 'down'... but I press and press and nothing happens. then, there is another Sun button w / an arrow to the left with another sun... nothing. I also hit shift and nothing. I tried to just go to start and put in "adjust brightness" and still nothing. I need to turn down the brightness, so I used to warm up the laptop. Help?

Probably get a better response if you re - post it in the forum of the laptop .

Do not forget to mention the version of Windows too.

Tags: Dell Desktop

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