In two weeks I’ll make a speech "Using two monitors with your Computer". I will show them how to connect the extra monitor and make it work. I use a laptop and an extra flat screen when I do my genealogy. I want to demonstrate that. As a result, I want to hook up both my laptop and the extra monitor to this InFocus machine (owned by the genealogy society. Can that be done with this machine? I assume I need a special cable. If so, please tell me what the name and/or number is for the cable.