In addition to Steve's advice, yes, PowerPoint does save a thumbnail in the
file. To actually *see* that in Windows Explorer, go for a thumbnail view.
In Vista it in the Views Menu item.
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Regards,
Glen Millar
Microsoft PPT MVP
Please tell us your PowerPoint version
Tutorials and PowerPoint animations at
the original www.pptworkbench.com
glen at pptworkbench dot com