Hi Reporter,
If the other person has kept Windows somewhat up to date

and tries to open a .DocX file in an earlier version of Word they will
be prompted to download the Office 2007 compatibility pack. Installing the compatibility pack allows folks in older versions to
open .docX files and also installs several of the Office 2007 'new' fonts, including Cambria and Calibri.
If you send them a file in .doc (legacy) format and they do not have the compatibility pack installed then as Stefan mentioned,
Windows will use several 'values' to decide what font to substitute by default. This isn't always obvious to the person reading the
document as the font dialog will continue to show the name of the font you chose when authoring the file, not the substituted font.
That can, in turn, affect the layout of your document as viewed by another person.
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What Happens when I send a Word 2007 Document to Someone who does not have the New Fonts?
For example Calibri and Cambria?>>
--
Bob Buckland ?

MS Office System Products MVP
*Courtesy is not expensive and can pay big dividends*