#6 switch off an scheduled alarm

[edirosso]

I'm using iTaf with a Macbook and Mac OS 10.4.9
I've scheduled an 6 o'clock alarm from Monday to Friday.
Sometimes I switch off the 6 o'clock alarm (erase the checkbox in the list of alarms) and create a new alarm only on Friday at 10 o'clock.
So I've expect an alarm at 10 o'clock not at 6 o'clock.
But the alarm form 6 o'clock startet the computer...
Is there maybe a bug in the iTaf user daemon ?
It seems that switched off alarms are not really switched off...

Do you understand my description ?
edirosso