Heads up for those using the kde-redhat repo. The package redhat-artwork-0.124-1.0.fc3.kde.i386.rpm is missing /user/share/gdm/themes/Bluecurve/throbber.png. If GDM is the display manager the login screen will fail to display and users will not be able to login. A bug report has been submitted to kde-redhat at sourceforge.net