(Case 00415123)
Hello Jonas,
Updating the ActivDriver in use with the computer is one step we recommend in troubleshooting this behavior at the board. The up-to-date ActivDriver, Version 5.10, can be downloaded from this page on Promethean Planet.
Additionally, we would ask that if any Extension cabling, booster, wallboxes or other hardware are used in the USB connection to the ActivBoard, that they be by-passed in favor of a direct connection from the computer to the electronics on the board using only a single length of A-to-B USB cable. Does connecting in this manner improve the pen’s behavior on the board?
What is the Product code from the Board in question? That will help us direct any additional troubleshooting for this issue.