[breezy] upgrade killed X.org

[Samuel Thurston, III]

breezy killed x.

Hey, it comes with the territory.  

gdm doesn't start, and manually starting x isn't working since my last
update/reboot.  I got three clues, possibly unrelated.  At first I
wasn't even able to get online because dhclient failed with the
message "user dhcp doesn't exist" so i created the user and that went
away. the other symptoms I have are that the deferred execution
scheduler fails at startup for reasons I cannot ascertain, and my
nvidia driver seems to have disappeared completely, as i cannot
modprobe 'nvidia' or 'nv'.

Any help would be appreciated
Thanks,
Sam.