No image appears on the screen

If you only see the logo projected and the icons are gone, the computer is probably in Extended Desktop mode. To change to Mirroring Mode, follow these directions.
Check that the Power light is green.
If the light is orange it may be in sleep mode. Press the Power button to turn it back on.
The attached computer may be in sleep mode or displaying a black screen saver. Press a key on the computer.
Make sure that the A/V Mute slide door is open all the way.
A different source may be selected- Press Source Search button.
Check that the cables are connected correctly. If they are, try different cables.
Adjust the Brightness setting on the Image menu or select High for the Brightness Control setting in the Settings menu.
If all three lights are red, contact your building technology specialist to reseat or replace the projector bulb.
Inspect the pins on each end of the VGA cable. If a pin is bent, try to bend it back or ask your building technology specialist to see if it is necessary to replace the VGA cable.