I'm running Elementary OS and have the same problem as this:
http://askubuntu.com/questions/159663/h ... rg-xserver
That is, I'm thrown out of X straight after login of my user account, but not the guest.
I've tried a bunch of stuff including:
recovery mode > fix broken packages,
deleting everything in ~/.config/,
removing the xorg.conf (ok, there wasn't a backup of the old file, so I just copied and removed the current),
this > sudo apt-get install nvidia-current,
loading an older kernel,
sudo dpkg-reconfigure xserver-xorg...
Does anyone have anything else I can try? It's not really so important, as it's the tv computer. I can just reinstall if it's a crazy problem.