I just bought a VIEWSONIC TD2340 from NewEgg and for the life of me I cannot get the touchscreen to work reliably. Calibration is buggy, simply pressing the first point will often time skip another calibration point or exit completely. When it does go through, it simply will not work. After moving a window over to the screen when I attempt to do anything, the window starts dancing around/resizing and other odd behavior. I cannot get I cannot get it to work. When I plug the screen into a PC though, no problem.
Are you running 3.2.1 software? If not please install this version and try again. We adding code for the Viewsonic td2340 as viewsonic changed some components.
i have the same problem. i found out if i use 5 fingers touching, it works well. maybe there are different Td2340 monitors out on market? i bought my in germany 1 year ago.
Can you please do my a favor? We found that ViewSonic has changed the touch overlay once already and we had to add in the new PID to our code before the 'touch' would work. Please attach the monitor to computer Open the Device Manager Under Universal Serial Bus Controllers you should see Generic USB Hub Right Click and open the Properties Click on the Details tap Under Property select the Hardware ids Please send me a picture of the Value listed
