http://bugs.winehq.org/show_bug.cgi?id=21114
--- Comment #8 from Pavel Ondracka drakkk@centrum.cz 2010-09-19 13:16:18 CDT --- (In reply to comment #7)
It is fixed on wine 1.3.3, I don't know exactly which wine version fixed it, I didn't tried antialiased option since a long time ago.
It doesn't look fixed here, are you sure you aren't using native gdiplus?