Escape Unwanted Copyright Symbols
The Problem:
Every time I type (c) in my document, Word changes it to a copyright symbol. (a), (b), and (d) are fine.
The Solution:
This is a built-in AutoCorrect entry intended to help you insert the copyright symbol easily. Similarly, (r) produces a registration symbol, ®, and (tm) produces a trademark symbol, ™.
To prevent Word from doing this, choose Tools 
AutoCorrect Options (or Tools AutoCorrect in Word 2000). On the AutoCorrect tab, click the (c) entry to load it in the Replace box and the copyright symbol in the With box, and then click the Delete button. If you'd still like to be able to enter the copyright symbol via AutoCorrect, type your preferred entry in the Replace box (the copyright symbol will stay loaded in the With box) and click the Add button. Click the OK button to close the AutoCorrect dialog box.