ActivManager is a utility loaded on all school Macs. It is accessible via the top toolbar.

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Click on the Whiteboard icon. A red X indicates a missing connection. If this appears, check connections to projector and computer.

 

ActivManager provides access to Control Panel and Calibration.

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Calibration can be used to recalibrate pens.

 

Control Panel provides various details concerning hardware, connections, pens and projector status helpful in diagnosing problems.