Often reapplying the template will help this. Unless you're using PPT 2007,
and then it's a different set of things to try as a fix.

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Echo [MS PPT MVP] http://www.echosvoice.com
What's new in PPT 2007? http://www.echosvoice.com/2007.htm
Fixing PowerPoint Annoyances http://www.oreilly.com/catalog/powerpointannoy/
> waugh!!! the letters in my powerpoint presentation are running together
> when
> i view the entire slide! what' wrong and how do i fix it!!!???!!