http://bugs.winehq.org/show_bug.cgi?id=26835
--- Comment #73 from David davidsboogs@gmail.com 2011-04-21 14:24:18 CDT --- Note, the patch also didn't solve the bug for Windows users - to quote from the forums:
Originally Posted by Feylong Funny, the new 'patch' now hides the pure virtual call bug by making the game dump straight back to windows (after valve bald guy vid) now with no error/warnings.
And a Valve employee responded, The crash dumps that we see on the backend now include more details as to what is causing the crash.
Hopefully, when it's actually fixed for Windows it will also be fixed for us.