I have the new version of the board that is a white board surface. It does not have a light in the corner, so I do not know how to calibrate the board properly.
Thank you for your post.
If the board you have is a Promethean one, you need to install the ActivDriver from http://www.prometheankb.com, article 10902.
If the driver is already installed, your computer will show a Promethean icon called ActivManager. Click on it and choose Calibrate.
Please let us know if you require further details.
Promethean Technical Support (support case 571942)