COMPUTER/PJ SELECT button
Press this to switch the mouse buttons between the projector
mode (lit red) and the computer mode.
The default is the computer mode. When the MENU, HELP or
POINTER button is pressed, this button lights red and the
mouse buttons are set to the projector mode. To switch them
back to the computer mode, press the COMPUTER/PJ
SELECT button. If no buttons are pressed within 10 seconds,
the light goes out and the Projector mode is canceled.