Details depend on what version you are using. If you are using 2003,
you have a few choices. The easiest is to go to that slide and choose
Background from the Format menu. Then check the box for Omit
Background Graphics from Master. Click Apply (not Apply to All). Then
you can add whatever graphics you want just to that slide.
Alternatives include using the multiple masters feature to make a
totally new master for that slide, but it is probably not worth it if
you just have one slide. --David
--
David M. Marcovitz
Microsoft PowerPoint MVP
Director of Graduate Programs in Educational Technology
Loyola College in Maryland
Author of _Powerful PowerPoint for Educators_
http://www.PowerfulPowerPoint.com/