A friend of mine inherited his father's iMac 12,1. He gave it to me to set up for him, and gave me his passwords. I logged into OSX (10.7.5!) ok, but now I can't do much else. Trying to enter his iCloud password into Settings, or the AppStore, or Mail, it just freezes. Once it said the wrong password had been entered too many times, so I went to iForgot.com. I entered the iCloud email address, and the captur... and after 20 minutes, it's still got a little blue circle spinning. Where do I go from here?