You need to modify the Envelope Return style, as follows:
1. On the Home tab, in the Styles group, click on the dialog launcher arrow
in the bottom right corner to open the Styles task pane.
2. Click on Options... and choose "All styles" for the "styles to show,"
then OK to close the dialog.
3. Find the Envelope Return style in the list.
4. Right-click and choose Modify...
5. In the Modify Style dialog, choose Format | Font.
6. In the Font dialog, change the font and click OK.
7. In the Modify Style dialog, choose the "New documents based on this
template" radio button and click OK.
8. You can now click Options... again and set the style list back to
"Recommended."
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Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
http://word.mvps.org