Final answer:
To solve the issue of Word identifying proper nouns as misspelled, Steve should right-click the noun and choose 'Add to dictionary'.
Step-by-step explanation:
In this situation, Steve should right-click the proper noun and choose 'Add to dictionary'.
By doing this, Word will add the proper noun to its dictionary and no longer flag it as a misspelled word.
This step is helpful when dealing with names, places, or any other proper nouns that are not recognized by the default spell checker.
Learn more about proper nouns