Can't get GNOME back as my default session

[William Robbins]

When I first installed Fedora, GNOME was the default session. Then I
changed it to KDE and now that I want to change it back to GNOME I
can't. I went in to the desktop switching tool and clicked GNOME  and
it told me I needed to restart my xwindows in order for it to take
affect. So I just restarted the CPU and it still sees KDE as my
default session. If some could help me out it would be a great help
and I am will to offer a gmail invite/ my gratitude to whoever can
help me.

William Robbins 
CCNP, CCDP
Jr. Network Consultant