http://bugs.winehq.org/show_bug.cgi?id=9717
--- Comment #10 from Norbert Lataille nonal@freesurf.fr 2007-11-25 09:23:46 --- Hi,
I will test different registry options, and report the difference.
This seems clearly linked to the issue as: - the drawing phase when my Zbuffer is updated "upside down" is the only one which has an "on-screen context" (Projection matrix is not multiplied by invymat) - rest of the frame is drawn in an "off-screen" context AFAIK.