http://bugs.winehq.org/show_bug.cgi?id=18728
--- Comment #28 from Henri Verbeet hverbeet@gmail.com 2010-06-18 10:29:42 --- Created an attachment (id=28934) --> (http://bugs.winehq.org/attachment.cgi?id=28934) test case
Driver bug, see attached test case. Apparently it doesn't like "stretching" from a multi-sampled back buffer.