Gnome, KDE, and linux file types
I just installed Mandrake 9.1. I've never used linux before. Whenever I boot, it loads Gnome automatically and logs in automatically as well. How do I get it to load KDE instead? Right now I have to log out and then log in using KDE. Also, how do I log in as root?
What are some common Linux file types and what are they for? Thanks for your help.