Cesar:
A hint. Make a copy of the presentation with the timer in it. Run that copy
and don't save changes after you show it. If the timer is still gone, you
can always make a new copy of the presentation file with the timer in it.
(Quicker than re-inserting the timer every time, in my experience.)

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Kathy Jacobs, Microsoft MVP OneNote and PowerPoint
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I believe life is meant to be lived. But:
if we live without making a difference, it makes no difference that we lived
> Hi, there
> Tushar's timer at:
[quoted text clipped - 4 lines]
> Anyway, it solved the problem.
> Thanks