This study reports on the Swedish discourse markers men but/and and sa so, their functions and prosodic correlates in dialogue. The purpose of the investigation is to get a better understanding of how discourse markers together with their prosodic characteristics signal the beginning of a new topic, a return to a previous topic, and different kinds of dialogue moves. The possibility of using prosody to automatically detect discourse markers is discussed. The results are compared with results from an earlier study on Swedish discourse markers in monologue.