http://bugs.winehq.org/show_bug.cgi?id=7532
------- Additional Comments From winehq-bugzilla@six-by-nine.com.au 2007-23-02 23:57 ------- Confirming that #4 works.
Now, what that setting actually does internally to the game, we have no idea. If Blizz were a little forthcoming on this, we *might* be able to patch wine accordingly.