3.Press Enter. Then use the 
pointer button (or up and down arrow buttons) and the Enter button to set the following options:
■Keystone
Adjusts a distorted image from a trapezoid shape to rectangular.
■Operation Lock
When turned on, this function disables all projector buttons except the PPower button. Changes to this setting take effect after you restart the projector. (After you turn off the projector, wait for the Ppower light to turn a steady orange before turning it on again.)
■Pointer Shape
Lets you select from three different pointer shapes. The Password Protect function must be cancelled first. See page 66.
■Brightness Control
Select Low lamp brightness when the projection is too bright for the room. The Low setting also reduces electricity consumption and fan noise. Select High to project the maximum brightness. (Also check the Brightness setting in the Image menu; see page 54.)
■Volume
Adjusts the volume for the projector’s speaker.
4.When you’re finished, press Esc or Menu.
note
To cancel the Operation Lock function from the projector, press the Enter button for about seven seconds.