I have recently run into a issue where DOF shuts down when entering pvp. This seems to only happen when joining a pvp/co-op battle. Each time i have been running fraps to record some footage. Tonight it happened 2 times in a row whilst trying to record a pvp battle with miklos1 @ 22:20 and 22:25. This being fine apart from it pays him with my troops still.
Can you have a look into why there might be some sort of conflict with the 2 programs running.