Mail not working properly
Hi guys, I am having a little problem that is a pain in the butt. I have iCloud set up, as well as several emails accounts set up in my phone. One iCloud account, a couple of gmail and a hotmail one.
On my mac in the iCloud preferences panel, I cannot select 'Mail' to be on iCloud. Why is this so?!
What this means is when I receive an email on my iPhone and I read it on my iPhone, when I get back home, that very same email is marked as unread. I don't know why I can't select 'Mail'. Others like contacts, reminders, notes etc work perfectly well and seamlessly between my iPhone and Mac. Even messages works brilliantly. Just Mail that doesn't. Please help!
More info: I manually set up the same mail accounts in my Mac's mail app. I also put in a screenshot of the iCloud preferences panel. What happens whenever I try to select 'Mail' is it will show a check mark, but if I closed preferences and opened it up again, it would show a blank box with no check again.
Thanks so much, sorry for the long post. Was trying to make things as clear as possible.
MacBook Air, OS X Mountain Lion (10.8.4)