Code: $ uname -a Linux Origin 2.6.35-22-generic #35-Ubuntu SMP Sat Oct 16 20:45:36 UTC 2010 x86_64 GNU/Linux $ lspci 02:00.0 VGA compatible controller: nVidia Corporation G86 [GeForce 8500 GT] (rev a1) $ grep "NVIDIA GLX Module" /var/log/Xorg.0.log [ 21.368] (II) NVIDIA GLX Module 260.19.06 Mon Sep 13 04:54:41 PDT 2010 Since ubuntu has handled the driver installation, I doubt reinstalling the video drivers will have an effect, but what the heck, only takes a few seconds. done. yay dkms. So, since I am running 64but, could you elaborate on the '32-bit drivers' that I need to make doubly sure are installed please? also, This error has been occurring since ubuntu 9.04 for me, and I've alway used the winehq's release. I'd like to point out that I am kinda having the same problem that this user had http://forum.winehq.org/viewtopic.php?t=393&sid=846b31d6db2adf6e9cb4aec17ea8e204 thou, the versions are much much older. also, strace output incase you want a larger headache. http://yetrs.ath.cx/~william/strace.txt.gz note: I also believe I have experienced the same issue while running 32bit.