A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Doesn't surprise me to hear that. Wonder if MS has figured out what the issue is? (Surely one of those major corporations has filed a support incident with them.) I've run into the same issue occasionally, and I've not been able to come up with a fix.
When it has occurred here, I have had to use PPT 2003 to import the slides.
As a matter of fact, the slides that were affected had had formatting applied to those textboxes via an add-in. (I'm sure not the same as Harvey's, I'm sure.)
I've also had issues when using the eyedropper and/or format painter when creating master slides and layouts, so I now always format all the placeholders there by hand.
I think it's got something to do with theses various non-manual formatting applications, but I've no idea what....