LG 84WT70PS Owner's Manual page 56

56
TROUBLESHOOTING
Problem
I cannot use 10 touch points in
Windows 7.
y Make sure that you use a content that supports up to 10 touch points.
- The content played (e.g. Flash Player, Paint, etc.) may not support
10 touch points.
y Remove the USB cable and connect it again in 10 seconds.
y Run the content (e.g. Flash Player, Paint, etc.) again.
y Restart your PC.
y If the gap between two touch points is 20 mm or less, the touch error
may occur.
y On the edge of the touch screen, 10 touch points may work unstably.
Resolution