Let's say my name is "Johnathan Smith" and when I log in to messages it always says "Johnathan Smith" at the top of every buddy list.
I want to change this name to "John Smith". If I click on the name, there is no option to change it. It will only say "View as Name" or "View as Handle".
It's not clear where Apple seems to be getting this name from so I don't know how to change it!
Some things I tried that did not work:
1) Logging in to aim.com and changing my name there. AIM now knows my name is "John Smith" but Messages still claims I'm "Johnathan Smith".
2) Disabling my Messages accounts. Deleting my Messages account. Disabling the buddy list. Logging out. Rebooting the computer. None of this was enough for Messages to pick up my new name. I'm still "Johnathan Smith".
3) Going to System Preferences and to the Users and Groups pane and changing my Full Name to "John Smith".
I don't know what else there is to try. It is very important that I can change this name. Any advice??
I finally figured this out.
The solution was to go to the Contacts app and change my name there.
My contact -- the one with my name -- had my AIM addresses listed there. Messages must be looking up the AIM address in the contacts list and taking the full name from there. When I change my name there, it changed in Messages.
I have no idea why this is what did it, but it worked!