OT: Display not found

Hi All, This is off topic, not an Xfce problem, so I do ask your indulgence. I am posting here because you are a bunch of smart guys in this subject and may be able to help me. For the life of me, I can not get epel's kmod-nvidia drivers to work. I get "display not found". I have posted the error logs and details of my system over on (it is pretty long, so I did not want to duplicate it here): http://scientificlinuxforum.org/index.php?act=ST&f=5&t=1477&s... This has been driving me crazy for several months. I am getting a bit desperate. I appreciate you guys' help, -T