I have confirmed that the problem is with the emacs build. Emacs24 works with today's org-mode.
--Susan message-- >I compile both emacs and org-mode daily. >Today M-up and M-down have stopped working as a mode of moving a line of plain >text up and down. >The problem may be with emacs rather than with org-mode. I'm having other >trouble such as that the ribbon on top (File / Edit / Options / Buffers / >Tools / Help) doesn't work either.