Can't change font in presentation

[Stefanie]

I'm having a random issue on some of my slides. I try to change the font,
but the font won't save. Every time I reopen the file, the fonts have
reverted back to the original, unwanted, font. Can any one help me?

 

[Echo S]

What font?

Oh, maybe it's this:

http://support.microsoft.com/kb/827759/en-us Text formatting is lost when
you save, close, and then reopen your presentation in PowerPoint 2002 or
PowerPoint 2003