Ok, so I stupidly put my full legal name for my icloud account and now, under mail pref, I can't just change it. Where it says "full name", it is greyed out and I can not change it. I went to iCloud.com and changed it there and then to the apple ID pref page and changed it there. I also went to system pref, mail, and made the change there. I have restarted my mail and computer and it is still showing my full legal name. I can't change it. Any ideas? Thanks in advance!