Last night while sending an email on my Ipad 2, everything froze. I could not send the email, alter the email or save the email. All the other apps worked fine, but from that point forward, when I opened the mail icon, a message appeared in the center of the screen saying: "Cannot Get Mail. The mail server imap.gmail.com is not responding. Verify that you have entered the correct account info in Mail settings." I did so, checking all mail settings, and nothing seemed amiss. Email on my PC and smart phone work fine. Not the Ipad. Any ideas?