I'm just setting up my wife's new phone which she got today. I have had mine for a while and I can't remember something related to the e-mail set up. I successfully set up her Yahoo mail so that when she clicks the mail icon on the home screen it goes to Yahoo mail no problem. However, the notifications that she is getting at the top of the screen are for her Gmail account. We want those notifications to be for her Yahoo. How do we change this?