Do I have to have the same I.D. and password for Apple, Itunes and mobile me? I changed my Apple I.D. and password to be on this site and now I can't buy on itunes and had to change my mobile me to get mail.
Unfortunately, there's a very serious problem with Apple I.D. passwords. I have quite a few app updates waiting on my OS X 10.8.3, but I cannot install them because of problems (even though I memorized my latest password and have it stored in Password Gorilla for verification).