Opto 22 posted Calibrating the Touchscreen Opto 22 Woodland, WA:

Calibrating the Touchscreen

One of the first things you should do when setting up your groov EPIC is to calibrate the touchscreen. You only need to calibrate the EPIC when it first comes from the factory, or after a factory reset. By calibrating the touchscreen, it will respond as expected when touched.

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