Hi. I have the 4D systems uLCD-32PTU-AR touchscreen starter package-- http://www.4dsystems.com.au/product/uLCD_32PTU_AR/. I cannot figure out how the touchscreen is supposed to connect to the arduino. the shield is on the arduino, the 5 ribbon cable is connecting the shield to the computer. Please help!
Have you checked this out?
http://forum.arduino.cc/index.php?topic=203213.0
And this pdf has pictures showing how its connected.