http://bugs.winehq.org/show_bug.cgi?id=33923
--- Comment #6 from Kelvin Ng kelvin9302104@gmail.com 2013-07-01 19:24:45 CDT --- Actually, why is this patch rejected: http://source.winehq.org/patches/data/85868?
The one who submit bug 12476 have tried this patch and can fix the problem. (In reply to comment #4)
The bug is that gdi doesn't synthesize bold for fonts that don't provide it (italic has been fixed already). It's the same issue.