Have you got: (org-babel-do-load-languages 'org-babel-load-languages '((R . t) (ditaa . t) (dot . t) (emacs-lisp . t) (gnuplot . t) (haskell . nil) (latex . t) (ledger . t) (ocaml . nil) (octave . t) (python . t) (ruby . t) (screen . nil) (sh . t) (sql . nil) (sqlite . t)))somewhere in your .emacs. FWIW Ledger and Babel work fine on Arch here. Ian.
Yes. This morning I reverted to version 7.7 and the problem went away.
