http://bugs.winehq.org/show_bug.cgi?id=21618
--- Comment #17 from Stefan Dösinger stefandoesinger@gmx.at 2010-02-07 16:14:24 --- Okay, now the download succeeded, and I found this in the logs:
trace:d3d:buffer_Map Returning memory at (nil) (base (nil), offset 0)
Which happens after a D3DLOCK_READONLY lock. I'll attach another debug patch. Can you give that a try and watch the err output? No special log flags required.