In this study, an experiment on communication and problem solving in face-to-face communication and computermediated communication was conducted. The latter was performed in two variants; subjects writing under their own name or subjects writing anonymously. The problems were a Social Dilemma problem and a Criminal Puzzle problem. The theoretical starting point was if, and how, the communication form influences social relations, communication equality and communication processes. A qualitative analysis showed that different problems were related to different patterns of the variables studied. The computer-mediated communication solving the Criminal Puzzle problem induced relatively greater idea generation that was not responded to, while the face-toface communication was associated with relatively more answers. In the Social Dilemma, feedback was relatively more common in face-to-face communication than in computermediated communication. To 'give information about the game' was relatively more common in the anonymous computer-mediated communication than face-to-face situation, indicating that computer-mediated communication is associated with speaker generation of information, but less with responses to the interlocutor. There were no outcome differences or communication equality effects related to communication condition. These results point to the importance of the task related activities in the discussions rather than the importance of medium.