Turn the projector on first. This eliminates most connection problems. Once the projector is switched on, then boot up your computer. If you are still not projecting on the screen, first make sure the lens cover is removed, and then activate your video port. This port on the back of your notebook computer isn t always active.
People describe it as a little valve that needs to be opened to let the image out.
Usually this happens automatically when you plug in your computer. The exact F key varies from computer to computer. Adjust your image. Be sure your presentation is readable. If it isn t big enough to read, do not present it.