What is your Edit/Format Masters in PowerPoint issue?

Responses:

Headers and footers in a master in PowerPoint...
Lost changes added to Presentation master with new template
Text in Masters in PowerPoint...
How to: Add page numbers to Slide master
How to: Change the distance between a bullet and its text
How to: Edit date and/or time in master placeholder
How to: Edit slide numbers in master placeholder
How to: Set/adjust the margin level in Slide master