xserver failed to preconfigure, with exit status 139

[phill]

I'm getting it too, I'm running a dist-upgrade to the latest Hoary.

Preparing to replace xserver-xorg 6.8.1-1ubuntu3 (using
.../xserver-xorg_6.8.1-1ubuntu4_i386.deb) ...
dpkg: error processing
/var/cache/apt/archives/xserver-xorg_6.8.1-1ubuntu4_i386.deb
(--unpack):
subprocess pre-installation script returned error exit status 139
Errors were encountered while processing:
/var/cache/apt/archives/xserver-xorg_6.8.1-1ubuntu4_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

The deb downloaded is 
5637286 Nov 30 18:40
/var/cache/apt/archives/xserver-xorg_6.8.1-1ubuntu4_i386.deb


-- 
phill