Dell P02E002, 1749 Touch Screen Calibration, If the touch screen starts losing its sensitivity

If the touch screen starts losing its sensitivity —

•Calibrate the touch screen (see “Touch Screen Calibration” on page 47)

•The touch screen may have foreign particles (such as sticky notes) that are blocking the touch sensors. To remove these particles:

a.Turn off the computer.

b.Disconnect the power cord from the wall outlet.

CAUTION: Do not use water or a cleaning liquid to wipe the touch screen.

c.Use a clean, lint-free cloth (can spray mild water on cloth if needed, but not on the screen) and wipe the surface and sides of the touch screen to remove any dirt or fingerprints.

Solving Problems

Touch Screen Calibration

NOTE: It is recommended that you calibrate the touch screen if you have touch screen problems or if you change the screen resolution.

To calibrate the touch screen:

1.Click Start → Control Panel→ Hardware and Sound→ N-trig DuoSense™ Digitizer Settings.

2.Click Start.

NOTE: Do not touch the screen until the calibration is complete.

3.Follow the instructions on the screen.

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