Comment 4 for bug 98504

Here is the error:

Unpacking linux-restricted-modules-2.6.20-13-386 (from .../linux-restricted-modules-2.6.20-13-386_2.6.20.4-13.12_i386.deb) ...
rver-xorg-video-vmware_1%3a10.15.0-0ubuntu1_i386.deb) ...
Preparing to replace nvidia-glx 1.0.9746 (using .../nvidia-glx_1.0.9755+2.6.20.4-13.12_i386.deb) ...
dpkg-divert: `diversion of /usr/lib/xorg/modules/libglx.so to /usr/lib/nvidia/libglx.so.xlibmesa by nvidia-glx' clashes with `diversion of /usr/lib/xorg/modules/extensions/libglx.so to /usr/lib/nvidia/libglx.so.xlibmesa by nvidia-glx'
dpkg: error processing /var/cache/apt/archives/nvidia-glx_1.0.9755+2.6.20.4-13.12_i386.deb (--unpack):
 subprocess pre-installation script returned error exit status 2

I suspect "envy" is responsbile for the failure, but I'm not familiar with this tool.