This one isn't a bug but a feature, however, it'll probably come up about a million times so has an honourable mention:
0. I want to set Xorg settings myself but there is no /etc/X11/xorg.conf
as root, run 'Xorg -configure :1', that'll create /root/xorg.conf.new which can be copied to /etc/X11/xorg.conf and tinkered with to you hearts content. restart Xorg server after editing it (ctrl-alt-bkspace)
NB: if you install radeon or nvidia drivers from rpmfusion and run the config script it will automatically create xorg.conf for you.
and finally, for the last time ever (probably)
THERE IS NO LIVNA, FRESHRPMS or DRIBBLE repos for F10, you now get to use the much more super RPM Fusion