I came back from vacation to find one of our library Internet PC's would not boot, because instead of the normal post and startup (it's a Micron, calling support later this morning) I am greeted by a Managed Boot Agent screen that cannot connect, and when I try to reconfigure it (ctrl-alt-b) it asks for a password, which I don't have, because I didn't put it on the computer! I can't try to work on it remotely either, because it doesn't boot past the MBA. Help!