Comment 2 for bug 185910

About the AddARGBGLVisuals line, maybe it's a problem in the way Wine handles OpenGL? A possibility is that both AddARGB* lines must be kept together in either the Device or the Screen section, because after the update the AddARGBVisuals remained in the Device section, while the AddARGBGLXVisuals went alone to the Screen one. I haven't read any of the nVidia documentation though, so I can be talking a lot of nonsense here. :)

In any case, this is how I have my Device section now, and it's working fine so far:

Section "Device"
        Identifier "nVidia GeForce 6800"
        Driver "nvidia"
        Busid "PCI:1:0:0"
        Option "AddARGBVisuals" "True"
        Option "AddARGBGLXVisuals" "True"
        Option "UseFastTLS" "2"
        Option "NoLogo" "True"
EndSection

And about the MIT-SHM line, please excuse me then. I've been changing heavily my system, installing and removing things, and something must have added this roughly at the same time I installed envy. I'll update my UbuntuForums post to make this clear.