Twee Twee's link is dead, so I've uploaded the drivers to my own OneDrive as a mirror: https://onedrive.live.com/redir?resid=5B... It's also posted in the comments, but there are a lot, and it's hard to find. This is a firmware update for the touchscreen driver, which provides the appropriate configuration and calibration. Contained: !Reflash.2.2.0.0_Bellaire_20131216_PR1574183-TPK-THQA !Reflash.2.2.0.0_Bellaire_20131216_PR1574187-Wintek-THQA