hiii... i am using acer e725, my function key is working but i cant reduce or increase screen brightness, but others are working mute,sounds etc, plzzzz tel is dis a drivers prblm or h/ware prblm, if driver prblm plzz give da driver
Did you try at acer.com?
Hi and Welcome!
for such advanced functions like screen brightness etc, very often some piece of software is needed. You should be able to find it either on the installation media that came with your computer, or on the support website of the computer manufacturer (which should be emachines.com in this case).