It sounds like you might've somehow managed to uninstall or screw up your desktop. That's a lightweight backup desktop that's running.
Do you still get the login screen? You should be able to change you default desktop before you login.
You need to be very careful when installing RPMs from other locations.
RPM will try to control dependencies and what might happen is that if you sourced an RPM from another place it'll uninstall a lot of stuff because the RPM you're installing doesn't provide everything your currently installed software needs. That's generally why they recommend only downloading RPMs for your distribution and version.
I'm guessing you downloaded some other distribution's package and installed it, Yast told you there were dependency problems and x many packages would have to be removed.
From the Xconsole you should be able to do the following:
If this does not work try yast rather than yast2.
Yast should start up and you'll be able to reinstall all those packages of KDE or Gnome and get your desktop back.
Do you still get the login screen? You should be able to change you default desktop before you login.
You need to be very careful when installing RPMs from other locations.
RPM will try to control dependencies and what might happen is that if you sourced an RPM from another place it'll uninstall a lot of stuff because the RPM you're installing doesn't provide everything your currently installed software needs. That's generally why they recommend only downloading RPMs for your distribution and version.
I'm guessing you downloaded some other distribution's package and installed it, Yast told you there were dependency problems and x many packages would have to be removed.
From the Xconsole you should be able to do the following:
su (enter root password) /sbin/yast2
If this does not work try yast rather than yast2.
Yast should start up and you'll be able to reinstall all those packages of KDE or Gnome and get your desktop back.