Microsoft Outlook 2010: Your automatic reply settings cannot be displayed because the server is currently unavailable. Try again later.

If eigther, is a known issue and resolved server side

see article on the known issue

http://www.slipstick.com/exchange/cmdlets/out-of-office-doesnt-work-with-exchange-2007-or-2010/

Would  check  have installed latest office 2010 Sp
http://support.microsoft.com/kb/2460049