I have both KDE and GNOME on my system, I'm running Yellow Dog and my system boots up intop KDE, How do I get ot GNOME?

You should have a sessions choice at your login prompt (assuming gdm or kdm login display manager). If not, try this (just to make sure everything in KDE works)

Log out to whatever login you have.

Use CTRL + ALT + F2 to switch to a TTY prompt and login there.

Type startkde to start KDE

1) does it go start to kde or is there a login
2) have you looked in their forums
3) I have no clue what mark posted

ummm but i think u need to do
in terminal
<code>
echo 'exec gnome-session' > ~/.xinitrc
</code>
Then type "startx" from terminal .....

note :- here by terminal i mean , when u change ur screen to tty by pressing " control + alt + f2 "

I was saying you can start KDE from a command prompt in one of your available TTY sessions. Then I gave some abbreviated steps on how to do it.

But it already goes into KDE, he says he wants GNOME

Now, I must weigh my options at making specific posts (namely mine) disappear off the face of the server...

If it boots up direct into a DE with no login prompt to ask for username, password
and type of session then u must be using autologin feature present on KDM.
Disable it in KDE control center, and next time u boot, the login screen will appear.
From there u can choose what type of Xsession u want to start.

Yeah, at the bottom of the login screen, theres a session button, thanks for the help guys.