1. Please go to the display setting in the system control panel.
2. If you want to set to mirror mode, both of the monitors must be set the same DPI.
3. If you want to set to extend mode, you can set the Artist to the monitor 1 or 2.
4. When display set finished, please open the Pen Tablet Setting and go to the Monitor Setting window. Select monitor 1 or 2 depending on your Artist setting of 1 or 2 before.