I teach business at a small middle school and somebody is always taking the projector I use. I use it to show the students spreadsheets and Word etc. My son cracked the screen on his Compaq Armada laptop so I am trying to hook it up with this Dukane 7200 projector I picked up on E-bay it only has the power cord and when it powers up it says NO Signal. I tried the av cords from my dvd player from the laptop to the projector but that didn't work. should my screen setting be different on the laptop? where can I get the proper agp cords from? the screen on the laptop is 1/4 black but I can still see enough to reset the picture dimensions.