http://bugs.winehq.org/show_bug.cgi?id=11188
--- Comment #5 from John Stahara staharaj@gmail.com 2008-02-13 22:25:29 --- Created an attachment (id=10760) --> (http://bugs.winehq.org/attachment.cgi?id=10760) warn+all with clean ~/.wine directory
I also have this problem (with the Frozen Throne expansion, as well), and have attached the part of the output following the Save attempt, with WINEDEBUG=warn+all. This is with a new .wine directory and only importing the [HKEY_CURRENT_USER\Software\Blizzard Entertainment\Warcraft III] registry branch from the previous.
Let me know if there's anything else I can do to help.