HP Compaq Presario,Presario R4000 Hardware And Software Manual page 147

Wireless (Select Models Only)
You can enable and disable the wireless devices with the wireless
button. When the wireless devices are enabled with the wireless
button, you can use Wireless Assistant to turn on and off the
devices individually. When the wireless devices are disabled, you
must enable them before you can turn them on or off with
Wireless Assistant.
To view the state of your wireless devices, place the cursor over
the Wireless Assistant icon in the notification area, or open
Wireless Assistant by double-clicking the icon in the notification
area. Wireless Assistant displays the status of the devices as on,
off, or disabled.
For more information about Wireless Assistant:
1. Open Wireless Assistant by double-clicking the icon in the
notification area.
2. Select the Help button.
11–12 Hardware and Software Guide