The more important setting is to check the page setup of the presentation so
it matches the display size (aspect ratio). As example: more plasma and lcd
TV's are a widescreen aspect ratio, so the presentation should be changed to
match in the page setup to 16"x9" (there are other variables that can affect
this).
Here are a few posts on the topic:
http://pptblog.tlccreative.com/index.php/all/2007/03/31/going_wide_screen
http://pptblog.tlccreative.com/index.php/all/2007/04/02/other_widescreen_page_setup_options
--
Best Regards,
Troy Chollar
TLC Creative Services, Inc.
troy at tlc creative dot com
www.tlccreative.com
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A Microsoft PowerPoint MVP