I have an Acer X23H monitor and HP 2209t touchscreen monitor and Geforce 7100/nforce 630i card
Whenever I touch the HP screen, it is the Acer that is affected. It does not matter if the HP is the primary monitor or not.
On its own the HP functions as it should, but once I connect the Acer, the HP touchscreen loses functionality and is somehow "transferred" to the Acer.
Am stumped. I believe the solution lies in calibrating the HP, but am not able to find where to do this.