Powerpoint

Hi Vivien

As a very quick suggestion try this:

Select View, Slide Master.
Hover over the two slides which have different heading formatting from the others
A tool tip should tell you which slide master is being used by these two.
Go to that slide master layout (ed Title only)
Click on the heading text box (on the the edge of the placeholder)
Press Ctrl + Spacebar

That should reset the font formatting to the one used by the Slide Master.

If it doesn't work you could try pressing the Reset button on slides in Normal view (not master view) to remove direct fomatting on a slide.

Please let me know if this worked,
thanks
Doug Dunn
Best STL