If you have a SMART Panel installed these are the steps for re-alignment. 

1.) Click the Window Start Icon in the bottom left corner. 

2.) Type to search for "Smart Settings" 

3.) After starting the application; under the Task section, select "Orient/Align the SMART Product"

4.) Continue the prompted steps, if the Alignment crosshairs display on the wrong monitor (not your SMART Panel), simply press the SPACE BAR to select another monitor. 

As soon as you complete with the crosshair alignment, then congratulations; you're finished.