Must be because you're a mod Wink
No box there for me to change it, only stating what it is, I can't change it.
Im not sure off the top of my head, but IIRC.. Mods can change display name only.
However, Admin can change both username and display name, which Ive now done for you - note that you will now need to login using 'Anarchy2k'.
To do this Ive also had to reset your password (which you can later change) - please check your email