Juniper Allegro CE Owner's Manual page 82

The Recalibrate option can be accessed from the Recalibrate button
and may be accessed if the Allegro has been without any batteries for
longer than 15 minutes. When calibrating the touchscreen, hold the
stylus down on the plus mark (+) for two seconds. Complete this
procedure for each + mark shown on the touchscreen for correct
calibration. Press Enter when prompted.
System
The System Properties applet displays general information about the
hardware and software configurations for your Allegro. The General
tab gives you system information including the processor type, etc.
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