Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

YOU HAVE ALREADY DEFINED THIS STYLE.
 
When you insert a new style in the style sheet
window, Word proposes a style I.D. (Word's label
for a style). You typed over the proposed style
I.D. with one that is already assigned to another
style on the style sheet.
 
■ Type a different style I.D., or delete or
  rename the other one.