X is black after removing all files /tmp files

[Charlie Zender]

Hi,

I successfully installed Ubuntu Hoary on a Dell Inspiron 7500,
but now the X display doesn't work. It worked fine after the
original installation then I did something stupid and now the
X display appears totally black, i.e., it's running but you
can't see anything. What happened is that I accidentally
deleted all the files and directories in /tmp while X was
running, i.e., I deleted the gconfd-zender, gpg-tEoLTf,
mapping-zender, orbit-zender directories.
Then I rebooted and now X is "back in black".

I tried removing then re-installing the X server and gnome
but that did not work. The screen is still black.
 From what I can surmise, there must be an X or gnome config file
somewhere besides /tmp that contains state-ful information that
I must manually delete before the system can reset itself correctly.
Anyone know how to get my X back without re-installing Ubuntu from
scratch?

Thanks,
Charlie

-- 
Charlie Zender, surname at uci.edu, Department of Earth System Science
University of California, Irvine CA 92697-3100. Tel: (949) 824-2987