I am running Windows 8.1 Pro (clean install) and have two Medion 20165 Touch Screens.
I can poke either screen but only my primary screen responds. When i try and calibrate the setup i can only get touch to work on my primary screen. For example if I swipe from the right in my primary screen the Metro interface loads in my primary screen, but if i swipe from the right in my secondary screen the Metro interface still loads in my primary screen.
This says to me that touch is working on both screens, but when I change the display from 1 to 2 on the Tablet PC Settings window the details change from saying "Limited Touch Support" to "No Pen or Touch input is available for this display".
I had both screens working with Windows 7, but i cant get my head round why only my primary screen responds in Windows 8.1.
Any ideas anyone? Not critical just annoying.