[Bug 9686] Zork: Nemesis and Zork: Grand Inquisitor seem to have applied incremental filter over static parts of screen image

http://bugs.winehq.org/show_bug.cgi?id=9686

--- Comment #10 from Vit Hrachovy   2008-04-19 03:21:58 ---
Created an attachment (id=12294)
 --> (http://bugs.winehq.org/attachment.cgi?id=12294)
WINEDEBUG=+ddraw log output

DDraw log of: 
1. starting game (menu is shown)
2. moving mouse (menu vanished with black screen)
3. moving mouse to quit button and exit

Seems the game uses 2 DirectDraw interfaces - the second one for buffering,
which is inadvertedly overwriting the correct output of the first one.