I need to ask a simple question, but a small amount of preamble is needed. I no longer want to fix the original problem, but want to prevent it in the future.
I recently had a problem with one and only one user on an Ubuntu 9.10 desktop system.
The user who installed Ubuntu eventually could not log into the desktop (Gnome) without getting a small X-term appearing in the upper left-hand corner of the screen. I have since fixed the problem by reinstalling and using frequent logouts and reboots to see if the original problem could be re-created.
Other users, most of whom were also admin who could use sudo and were created after the installing user, could log into Gnome just fine. The installing user was fully deleted and re-created (home directory) and not installed with its backed up information. This still did not fix the problem.
My question is this. What could be left behind and possibly in which files by the installing user that would still affect this user even after that user was completely removed and re-created?
The only thing I have not done on the re-installation, is I have not installed Konqueror. I have installed konsole, which installs some KDE components, and that was done the first time.
I don't want to install Konqueror and have the same problem occur again at least without a place to look, so I don't have to re-install. I did make the classic mistake of not looking in the logs, specifically xsession errors. I won't make that mistake again.
Thanks for any advice or thoughts.