Following Luc's line of thought, you can collapse the Outline to see only the
titles. In 2003, display the Outline tab and click the Collapse All button.
In 2007, right-click any Slide Title and choose Collapse> Collapse All?
Or perhaps you were talking about a slide layout that includes only a title?
If so, in the Slide Layout task pane, choose the Title Only option.
Ellen