Stephen,
   
>   PrefSetPreference(prefAlarmSoundLevelV20, slOff);
>
>3. The alarm goes off as planned and is AUDIBLE, even though Prefs shows
>the volume is off.
>
>HOW CAN THAT BE??

Because the OS, in its infinite wisdom, only reads that particular preference
value after a reset and then keeps it cached internall.  Changes to the
preference value do not take effect until the next resest.

The Prefs applet calls a second, system-use only function which alters the
cached value.  Thus changing it from the applet takes effect immediately.

Doug

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