I have been having the following problem lately: Both of my FilveVault 2 encrypted new externals become unresponsive upon entering the password. OS X gives me the beach ball of death each time and Finder becomes totally unresponsive. Even shutting down is no longer an option, given that the MBP shuts OS X down, but does not go off (the screen stays grey). I have all updates available through Software Update installed and repaired disk permissions. They did work perfectly fine until today but now both mutiny. Any help would be highly appreciated!