Versions of PowerPoint are not "downward" compatible. PowerPoint 2000 has the
limited multiple master capability that you've noted because Microsoft was
getting ready for multiple masters as far back as PowerPoint 97. While both
version will open and show a presentation that uses them, you cannot use any
editing function and expect the multiple masters to be retained when the file is
re-saved.
If you need to regularly prepare presentations that might be edited and played
in older versions of PowerPoint, it is best to first go to Tools > Options >
Edit and disable the three items listed at the bottom of the dialog window,
including Multiple Masters. This way users with older versions of PowerPoint
are less likely to alter your presentation in a way you don't want.
--
Sonia Coleman
Microsoft PowerPoint MVP Team
Autorun Software, Templates and Tutorials
http://www.soniacoleman.com
"Lil Work" <(E-Mail Removed)> wrote in message
news:iMLye.47605$(E-Mail Removed)...
>I know version 2000 didn't have multiple masters, and I also know it will
> play them if they exist from being created in 2002. What I didn't know is
> that it would destroy them given the right condition. I found out the hard
> way that multiple masters in a file used on version 2000 removes any unused
> masters as soon as the user deletes a slide.
>
> I had made a file with about 8 multiple masters, and I built several slides
> using 2 of the 8 masters.
> I went to a meeting with a co-worker and we used her laptop (version 2000)
> since the show had no 2002 animations and 2000 will play multiple masters.
> Just before the meeting, she deleted a slide and saved. At the last minute
> our boss asked us to make a slide using one of the other multiple masters.
> Knowing that can't be done on version 2000, I borrowed a laptop with 2002
> for a quick edit. To my horror, I saw that all the other masters were wiped
> out by version 2000. Great.
>
> Another co-worker sent his file to a user with version 2000 for editing and
> when he got it back, he found his multiple masters also were eliminated by
> version 2000.
>
> I'm sure there's no workarounds except copy the masters back in from another
> file, but when you have reps in the field who are being paid for skills
> other than authoring slide show software, it's frustrating to a make them
> understand.
>
> So, I'd just like to know if we are seeing this correctly? Has anyone else
> ran into it or can someone verify this? I couldn't find anything archived
> about it. -TIA
>
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