http://bugs.winehq.org/show_bug.cgi?id=23904
--- Comment #7 from Matteo Bruni matteo.mystral@gmail.com 2010-08-07 17:55:46 --- Created an attachment (id=30046) --> (http://bugs.winehq.org/attachment.cgi?id=30046) Possible regression fix
The attached patch fixes the regression with ORM=backbuffer for me, let me know if it doesn't work for you. Anyway, from what I can see backbuffer mode is still quite broken overall...