If possible, plug the laptop into a power source. We have learned from service personnel that many laptop manufacturers, in order to increase battery life, have reduced power output so severely that when power is drawn by using the hard drive, sync signal strength to external monitor ports (which is critical for connection to the projector) may be lost. Also, plugging into a power source ensures your battery won't quit in the middle of your presentation.
Turn on your laptop's video output port. Most laptops have keyboard combinations to allow the video output to be toggled between three modes: 1) just to the laptop screen, 2) just to the output port, or 3) to both the screen and the port. We recommend using the 'Both' setting, so that you can see exactly what's on the screen.
Adjust your laptop's display settings so that your laptop's screen is sent to the output port. Depending on your operating system and software, you'll have a utility or control panel for specifying how the system handles this external display. For Windows 7, go to Start > Control Panel > Display > Change Display Settings. We recommend choosing to 'Mirror' or 'Duplicate' the displays so that the laptop screen and the projector show the same thing, instead of 'Extending the Desktop' and having to move your presentation window over to the other screen. Note: Due to the differences between the size and resolution of your laptop screen and that of the projector, the image on your laptop screen will change.