5Fn+ Name FunctionMutePress this button to turn the audio on or off.You can only use this function after installing Windows XP/Windows Vista/Windows 7 and installing the Samsung ControlCenter program with the system software media disk.VolumeControlControls the volume.You can only use this function after installing Windows XP/Windows Vista/Windows 7 and installing the Samsung ControlCenter program with the system software media disk.Silent ModeReduces the Fan noise so that users can use the computer withouthearing noise.You can only use this function after installing Windows XP/Windows Vista/Windows 7 and installing the Samsung ControlCenter program with the system software media disk.WirelessNetworkThe wireless network configuration program starts and you canturn the wireless network device on or off.(Only for models with a wireless network device.)You can only use this function after installing Windows XP/Windows Vista/Windows 7 and installing the Samsung ControlCenter program and the wireless LAN driver with the systemsoftware media disk.Numeric Key (For 15.6 inch models)If you press the Num Lock key, you can use the numeric keys.NumLockYou can use the numeric keys after installing Windows XP/Windows Vista/Windows 7.Fn Lock keyIf you press the Fn Lock key, you can use hot keys even without pressing the Fn key.FnLockIf the hot keys do not work properly, you have to install the Samsung Control Center.