I really want to change mine too because I don't like Twilight so much anymore. I looked and looked but I can't change it! And I don't want to make a new account because I've already done so much on Fanpop! BTW, if I could change my account name, it would either be "tamakinz" (long story) या something Harry Potter related, but it would have to be original, not like "PotterFan101" या something.
