If you notice your interactive pen isn't very accurate, please follow these steps first.
In the bottom right tray, click on this icon
In most cases select "Calibrate (Normal)"
An advanced calibration will use more points and take longer, but it will also be more accurate.
After choosing either calibration choice, you will get this message.
Read the message then click okay.
Touch the pen to the green dot(s) on the screen.
If you miss a dot, or press in the wrong spot, simply go back to your computer and press the "Esc" key, this will cancel the calibration and you can start over from the beginning.
If the pen still is not accurate go back and try an advanced calibration
If you still have issues after an advanced calibration, open a support ticket.