I have the same Problem. Fixed by write my email in settings again and confirm the Mail.

There should be an inquiry after the change button "do you really want change," "yes / no" It would be annoying to begin a long task and this accidentally to change the middle in carrying out accidentally.

https://www.youtube.com/watch?v=LVT4erilVCI There is a Link to http://savepic.net/6936492.jpg But ?

that's what I call a great victory :ph34r: