I have had a .mac email address for a while. And now it is a problem. All my apple accounts point to this address in terms of login info. The problem is it uses this email address to email receipts and such. I have a me.com account too and it won't let me change my address in this account to the me.com address and it won't tell me why, and on top of that I can't log into my .mac account because I don't know where you to go to log into that.