After reinstalling Ubuntu One using the FAQs tutorial, when I try to log in, Ubuntu gives me the message: "The authentication failed".
I tried to recover the password (even knowing it), clicking on the button "I've forgotten my password", but when I entered my mail address, Ubuntu tells me "Sorry, we did not recognize the email address". I can sign in without problem using the browser.
I am using 12.04 32-bit. Any ideas?