http://bugs.winehq.org/show_bug.cgi?id=31794
--- Comment #11 from unsuspicious.fakename+wine@gmail.com 2012-10-13 02:59:34 CDT --- Didn't encounter the error with wine / stub v2 applied.
Have not yet been able to test without stub2 applied (/ in clean wine prefix) yet though, since my steam wouldn't work at all first and I recompiled / messed around a LOT prior to installing the game... also moved my steam folder around prefixes a little and installed "unofficial patches" for the game because steam kept crashing.
If debug output from a really "dirty" install like this is of any help, post what exactly you need (I don't really know what I'm doing and I guess I'll be busy trying to make sound work for a while, so I can't recompile / try vanilla wine ATM).