How to: Use the slide meter for feedback on slide timings during slide show.
Solution:
During a Slide Show, bring up the 'Show Popup' menu and select 'Slide Meter...'.
1) Select the 'View' menu and select 'Slide Show...'. (The Slide Show dialog box appears.)
2) Select the 'Manual Advance' radio button.
3) Click 'Show'. (The slide show begins, in manual mode.)
4) Right-click the mouse button. (The Show shortcut menu appears.)
Show shortcut menu
5) Select 'Slide Meter...'. (The 'Slide Meter' dialog box appears, showing how the current timing compares to the slide timing set during a timing rehearsal.)