When I switch the output source and display images from the computer, nothing happens. What should I do?

• The Source button does not work with a computer connected to the document camera with a USB cable. You need to connect the document camera to your computer with a VGA cable. Connect one end of the VGA cable to the document camera's Computer In port and the other end to your computer's monitor out port. You can then press the Source button to switch between the live camera and the images displayed in your computer.