http://bugs.winehq.org/show_bug.cgi?id=16146
--- Comment #8 from Dan Kegel dank@kegel.com 2008-11-28 18:00:34 --- Workaround was posted in ubuntu bug 300476: See http://ubuntuforums.org/showthread.php?t=966709 and http://wiki.winehq.org/FAQ#head-dec980f6deabdb11b789c981bf49e10e70929eaf Appending [HKEY_CURRENT_USER\Software\Wine\X11 Driver] "ClientSideWithRender"="N" to wine registry did the trick.
Sure enough. So I guess the Render extension is busted with the nvidia-96 drivers on Intrepid?