http://bugs.winehq.org/show_bug.cgi?id=31823
--- Comment #6 from GyB gyebro69@gmail.com 2012-09-30 14:11:22 CDT --- (In reply to comment #5)
except that certain combination of letters (most notably 'fi' in a given word) results in bold fonts. That could be due to another commit after 1.5.12?
Would you mind doing a regression test and seeing if there's something else responsible for that?
I've filed bug #31840 about the font issue.