If you want to be able to calibrate your Viewsonic G-Tablet Touchscreen easily, check out XDA forum member gojimi‘s version of this touch screen Android application.
The Calibration app can be launched from the app drawer – originally called ‘moduleap’, the XDA member has modded the app to make it easier to use and it now includes a launcher icon.
Note that if you have the original moduleap application, you’ll need to uninstall before installing this one. And you’ll need to make sure that you don’t touch the screen during recalibration.
For more information and to download the apk file, head on over to the application thread._________