I complained in another area about trying to run the latest LIVE KDE disk and not being able to get to a running desktop because corrupted video kept me from seeing and selecting the correct choices for the license and other selections. Well, not to be outdone by these simple choices, Fedora have redesigned their installer and for the worse, it seems.
http://www.dedoimedo.com/computers/fedora-18-kde.html
The install program from them was not good looking in the past but at least it worked.
ymmv