LG 42LT55A-5B.AEK Owner's Manual page 67

Problem
A touch is applied to a monitor
other than the one I intended.
I cannot use 10 touch points in
Windows 7.
y Change your tablet PC settings (Windows 7).
- This may occur when the touch screen is not calibrated properly.
Go to Control Panel > Hardware and Sound > Tablet PC Settings >
Display > Display options > Calibrate or Reset
y Set the monitor as the default monitor (Windows XP).
- This may occur if the monitor is not set as the default monitor when
you are using multiple monitors.
Go to Control Panel > Display > Settings tab > Select the monitor >
Use this device as the primary monitor (U) > Apply (A)
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 15 mm or less, a touch error
may occur.
y On the edge of the touch screen, 10 touch points may be less reliable.
TROUBLESHOOTING
Resolution
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