Gateway MX3311 Hardware Reference Manual page 24

CHAPTER 2: Checking Out Your Gateway Notebook
20
Press and hold F , then
N
press this system key...
www.gateway.com
To...
Increase the brightness of the display.
Decrease the brightness of the display.
Mute the sound. Press the key combination again to
restore the sound. For more information, see
"Adjusting the volume" on page
Increase volume. For more information, see
the volume" on page 23.
Decrease volume. For more information, see
"Adjusting the volume" on page
23.
"Adjusting
23.