[Bug 22019] New: Large black rectangles flicker in and out on some games in Steam

http://bugs.winehq.org/show_bug.cgi?id=22019

Summary: Large black rectangles flicker in and out on some
                    games in Steam
           Product: Wine
           Version: 1.1.40
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Keywords: download
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Several times a second, a large rectangle (usually the same one depending
on the game or screen) flickers to black.  This is pretty annoying.

This happens on Braid Demo and Call of Duty 2, but not on Portal: First Slice
or Total War: Napoleon, all tested under Steam.
It does not happen on the non-steam version of Braid Demo