How is Mail getting my Brothers name?

[altecXP]

After a clean install I started setting up mail and saw this, Its not my name, its my brothers. How would my MacBook get my brothers name? It keeps putting it there when ever I want to add a new account.

 

[wikus]

Did he install OS X for you? Its usually the case during setup when it asks you for your information.

Go to system preferences and click on sharing. See what the name of the computer is there.

 

[altecXP]

He did not do the setup, I did. Sharing shows my name. This seems to be the only place it uses his name.

 

[altecXP]

no ideas anyone?