I type "AT&T" and it is autocorrected to "AT&Actually"

I've checked auto correct, etc.

See "How can I import and export all my AutoCorrect entries, so they can be transferred to another machine?” at:
http://word.mvps.org/FAQs/Customizat...utocorrect.htm. See also AutoCorrect2007.zip The AutoCorrect backup/restore template updated for use with Word 2007 and Word 2010. The first article gives directions, the second link has the version that works with Word 2010 without the explanation that is in the first article.

Run the export utility and look search the resulting table for Actually. In the meantime, Ctrl-Z (Undo) is your friend.

Charles,
Thank you. It worked.
/ck