Mail won't let me save preferences
When I change any settings in the Mail preferences for my iCloud account, Mail is refusing to store the settings with the following error message:
Invalid Incoming Mail Server
The âIncoming Mail Serverâ field cannot be empty.
But the Incoming Mail Server field is not empty, it contains "p05-imap.mail.me.com" which is also grey and not editable. It's only with the iCloud account. I have other mail accounts in Mail (Gmail, the mail account at my university) and with these there's no problem.
Any hints on what is causing this problem and/or what I might be doing wrong would be highly appreciated.
MacBook, Mac OS X (10.7.5)