ok, i got some trouble with tripplehead 2 go support.
i got some trouble with the chat. there is it only on the left monitor and only with verysmall settings readable. and no posibility to read the own messages before sending.
with other menuesettings is no chat readable. before briefing is no chance to read something from the chat since 1.00 of arma2.
3 friends of me got these problems too with the tripplehead2go.
arma was great in 3 monitor support, so i hope it will be fixed in arma 2.
with best regards