Hi Adam.
Thanks for posting on the forum.
To help assist you with this issue, I have created a Promethean technical support case. Should you wish to contact us directly, please quote your case reference which is: 00395896.
Please could you update your driver version, the latest is 5.9.27 which can be downloaded from here.
We recommend when installing the driver that the USB cable is not connected to the computer/laptop. Once the update has finished you can reconnect your USB cable.
Please could you also try resetting the ActivBoard, to do this, please remove the USB cable and turn the power off to the ActivBoard. Please ensure that if you are using a projector on the same power socket that this is turned off prior and has had sufficient time to cool down. Once turned off, leave for 10 minutes and power back on and reconnect the USB cable. Please re-calibrate the ActivPen after this step has been performed.
If you restart your computer after this step and see if you have no interaction with your ActivPen we may need to upgrade your firmware on the ActivBoard. For this you will need to get in touch with Promethean technical support directly. You can find a full list of phone numbers here or fill in our contact form, please remember to quote your reference number (00395896)
I hope this information helps.
Adam
Promethean Technical Support