How does one clear the visited hyperlinks history in PowerPoint?

Clearing the Internet Explorer cache doesn't seem to work, and I can't find the answer through Google or the Microsoft help files. Any ideas?

Using Microsoft PowerPoint 2003 and 2007.


This is totally overkill, but I'd bet if you used CCleaner it would remove the history, wherever it is.


Close and reopen the presentation - it works for me in 2007.