I have some old touch screens that I'm trying to re-purpose. They are NEC AccuSync LCD 194WXM. Previously they were used with thin clients with Windows CE 6.0. I've attached them to a Windows Box with Win 8.1. I cannot get the screen to calibrate. I've tried the "Tablet PC Settings" in the Control Panel. It shows the NEC LCD194WXM as "Single Touch Support". I click "Calibrate" and goes through the calibration samples with the crosshairs. When I touch the crosshair, the screen indicates that I touched somewhere else (opposite side of the screen) and displays the next crosshair for me to touch.
I've tried different touchscreen utilities, 3M, elo, eGalax, without success.
I have nine of these monitors that I would really like to use.