Q: Can I Change This ?

I noticed that when i starting going through things in my macbook pro i seen my old user name that i put into the laptop when i bought it.

Im now wanting to change it from "shoxrs4" to something else.

I have changed my e-mail and things in "Users & Groups" but it seems to still be bringing up my old user.

Here is a picture to show you what i mean.

[IMG]http://i2.photobucket.com/albums/y16/Puppyec/Random%20Pics/User.jpg[/IMG]