Compaq Armada 7400 Reference Manual page 15

To move around the screen while making selections and
entering information:
press the
press the cursor (arrow) keys, or
use the pointing device built into the computer keyboard.
To save your selections, press the
mouse button on the computer keyboard.
To restore the screen if it is cleared by the screen saver during
a period of keyboard and mouse inactivity, press the
For more information about using the built-in pointing device and
mouse buttons, refer to Chapter 3, "Keyboard and Pointing
Device."
If you are prompted to select your language, choose carefully.
The languages that you do not choose will be deleted
from the computer and cannot be recovered.
key,
key or press the left
key.