■Try adjusting the Volume setting in the Setting menu (see page 50).
■If you’re using a VCR or other video source, make sure the volume is not turned all the way down or muted. Also, make sure the cables are connected correctly, as described on page 40.
■If your presentation includes computer audio, make sure the volume control on your computer is not turned all the way down or muted. If you’re using the audio cable, make sure it is securely connected to both the projector and your computer’s
headphone jack or 
audio out jack.
■Make sure the Windows volume controls on your computer are not turned all the way down or set to Mute. You may be able to check this by clicking the volume control in your Windows system tray (lower right corner of the screen).
■Make sure the Mac volume controls are not turned all the way down. You may be able to adjust the volume from your menu bar (top right corner of the screen) or via the volume control function keys.
Solving Problems with the Remote Control
The projector doesn’t respond to remote control commands.■The remote control’s batteries may not be installed correctly or may be low on power. To change the batteries, see page 26.
■Make sure you are within about 20 feet (6 meters) of the projector and within range of the projector’s front or back sensor (approximately 30° to the left or right and 15° above or below).
■Dim the room lights and turn off any fluorescent lights. Make sure the projector is not in direct sunlight. Strong lighting, especially fluorescent lights, may affect the projector’s infrared receivers. Also, turn off any nearby equipment that emits infrared energy, such as a radiant room heater.
Solving Problems 75