http://bugs.winehq.org/show_bug.cgi?id=16910
--- Comment #3 from Ben Klein shacklein@gmail.com 2009-01-12 20:23:16 --- If it does only occur with AMD64, it's almost certainly not a problem with wine (unless it happens in win64 code).
I can also not reproduce with Wine 1.1.12 on Debian sid/amd64 with nVidia 177.80 driver.