http://bugs.winehq.org/show_bug.cgi?id=14045
--- Comment #40 from Yorik van Havre yorik.vanhavre@gmail.com 2009-12-03 06:34:35 --- To my big shame I just discovered the cause of this bug... It was simply the 32bit part of the nvidia driver that was malfunctioning. I did an update of the driver, and discovered the nvidia-glx-ia32 package had problems. With a new version properly installed, all problems mentioned in this thread are gone.
I suggest other people who encounter the same problem to check if the 32bit part of the driver is installed and working... (Would there be a simple way to do that?)