http://bugs.winehq.org/show_bug.cgi?id=2398
--- Comment #227 from Mark Hatsell mark.hatsell@btinternet.com 2008-02-25 10:01:24 --- Just wondered if there was ever likely to be a fix for this for the Intel Macs?
As far as I know, they don't have support for either the X Composite extension or the glXCopySubBufferMESA fallback method.