Hi Kim.
Thanks for posting on the forum.
Could you advise what model of ActivBoard are you using?
You will have an ActivManager icon on your taskbar, please click on this and click on Calibration. Please try and calibrate using this method.
The icon will look like this 
If you are still experiencing issues, please could you click on the ActivManager icon and click on Control Panel. When this window appears, at the bottom will be a driver version, please confirm this version.
I have created a Promethean technical support case for yourself should you wish to contact us directly. Please quote your reference number 00427678.
Adam
Promethean Technical Support