[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 #3 from Stefan Dösinger   2007-09-17 16:20:56 ---
It looks like the game didn't used to work, something "broke" it and made it
look better, now it is "correct" and broken again. Does that sound right, or do
I miss anything?

I think a bug in the first PBO patch cascaded a different bug, now the bug is
fixed and the original bug back. However, the hiding of the bug gives some
important information.

Can you describe the "unplayable state"?