I have my carpc up and running for about 7 years now with no problems at all. In the past few days the touchscreen on my 7" transflective monitor has been acting up.
By acting up I mean the it stop working in total.
One time when it did this I unpluged the usb connector a few times. This reset the controller and it started to work again.
At this time it has stopped and even though I tried to unplug the usb connector the touch screen is still not working.

Based on your experience what would you think is the problem ? The touch overlay, the controller or the driver ?

Any suggestions on how I would go about solving this abrupt problem ?