Some contend that PowerPoint is from the Devil. (this is DeborahHartmann editorializing, just a bit :-) Personally, I think it's a plot to suck all the vital energy out of the creative people who might otherwise be changing the world.
A Presentation, while impressive for a moment, does NOT replace real Work. Simply telling us your idea is less impressive than showing you believe in it by actually realizing it, if only a small step at a time. (Show us your working software!)
Be that as it may, some still find .ppt necessary. So here is some help:
(well, ok, it's really to spare the rest of us :-)