As of rebooting yesterday I can't login as myself to the X server part of 64-bit Lubuntu 12.04. Same problem as Can not get passed the login screen but that solution didn't work for me.

Troubleshooting steps I already took: I can

1. log in as guest (with whatever window manager) to the graphic (X) view of Lubuntu.
2. log in as myself into a virtual terminal. (In fact I'm writing this from w3m for that reason.)

So I know my password is correct and that most aspects of the system are working. One of the top google results for "can't log into lubuntu" mentioned a disk-full problem on netbooks; I don't have that problem.

Let me know if I need to paste any messages or config files to make this question clearer and I'll do so.

$ ls -l /home

total 12
drwxr-xr-x 99 me me 12288 May 26 14:16 me

$ ls -ld /tmp

drwxrwxrwt  16 root root 4096 May 26 15:46 /tmp