http://bugs.winehq.org/show_bug.cgi?id=11842
--- Comment #4 from Roderick Colenbrander thunderbird2k@gmx.net 2008-03-05 16:39:05 --- It could be a duplicate of bug 11792. That bug report contains a proposed fix (I expect it will enter GIT tomorrow or so). See if that fix helps for this bug too.