** I can change the time on any calendar except one, when I click save for that calendar it reverts back to what it was. Also, can't use 0 as an option in any calendar - reverts to 1 **
I'm afraid I am not overly familiar with the plug-in's functioning to advise what may be happening. You could try editing the overlapconfig.txt file in that plug-in's db directory to see if you can manually set those values.
Note: Be aware that many of the CalendarScript data files use a [Tab] character to separate the values. Be sure whatever application you use to edit such files preserves those tab separators.
Dan O.
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