I have a samsung galaxy s2 skyrocket from which I would like to remove a gmail account. So I go to Settings, Accounts and Sync, then select the gmail account, then I select the "Remove account". But it keeps stating that "Account required by some applications ...". I don't want to do a factory reset as I don't want to wipe out all data from this phone. Which applications could be using this account? How can I remove this account without factory reset?