We are seeing random touch marks on the Wall. Even when no one has touched the screen.

We are seeing random touch marks on the Wall. Even when no one has touched the screen.

This is normally caused by a local issue with the monitor. In most cases, the below steps will resolve this issue.
• Tune the touchscreen’s sensitivity level.
• Try unplugging the touch cable on both ends, the monitor and pc - then re-plug them in.
• If the monitor is a MultiTaction or large Planar, dimming the lights in the room may help.