This episode was replayed last night in my area (don't know if this is true everywhere). With the normal episode it had captions designed to enlighten and perhaps help Lost viewers that are Lost themselves catch up or catch on. When Matthew Abbadon is talking to Hurley at the Santa Rosa Mental Hospital the captions read something to the effect that Abbadon was not a lawyer and was not with Oceanic and something about his name being biblical and it's meaning (this has all been discussed elsewhere). Then it said that the drawings that were shown very quickly on the chalkboard behind Hurley were a clue as to Abbadon's true role in all this. Who knows what was on the Chalkboard?