Dell Latitude XT3 Owner's Manual page 29

firmware rollback application. It will run the rollback tool and then continue to
install the Window 7 bundle installation.
Performance Issues
• User has no multi touch functionality
a. Check if the N-trig bundle is installed.
b. Open Control Panel and the N-trig DuoSense Digitizer Settings icon must be
displayed. If the bundle is not installed. Please install the right bundle for the
operating system installed on the computer.
c. Check the system information to see how many touch points are detected.
1. Click on Start.
2. Right click on Computer and select Properties from the menu.
3. Number of touch points should be written in the information window .
Figure 11. System Information — Touch Points for Pen and Touch Input
NOTE: In Windows Vista and Windows XP bundles there are no 4 points multi touch
after bundle installation. The Vista/XP bundles support single touch and gestures
(two fingers).
• Bundle is installed but touch functionality is missing
a. Open the Device Manager and check that the Digitizer is recognized by the
computer.
Figure 12. Device Manager — Digitizers
b. If the device is recognized, try to uninstall the N-trig bundle and reinstall.
c. If the device is not recognized, check if you see it under Unknown Devices and
update the driver for the unknown device
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