I'm running Mountain Lion 10.8.5... and every time I restart my computer or log-out & back in, I get a message box saying that
"CalendarAgent wants to use "login" keychain".
I've tried repairing the keychain... didn't work.
I've tried setting all names in the login keychain to "Allow all applications to access this keychain".... didn't work.
I've tried deleting the keychain and setting all passwords again... didn't work.
This is beyond frustrating at this point. The only I can seem to get it to quit asking me this is if I delete my exchange account from calendar and quit using it altogether.
Are there any other suggestions on how to fix this?