Greetings:

I was trying to add some kde packages to my gnome desktop x86_64 system, when I got this error:

Transaction Check Error:
  file /var/spool/gdm from install of kde-settings-kdm-4.8-8.fc18.noarch conflicts with file from package gdm-1:3.4.1-1.fc18.x86_64

I have never had a problem like this before...

--
Sincerely yours,
Rob G. Healey