I’m in KDE4.0.4 and after installing the core devel stuff and rebooting, NONE of my apps are showing up on my launcher menu. As such, all I can get into are the apps on the Favorites part of the launcher menu. Any help appreciated as I finally managed to fix everything else and all I want is a working system.
Log out; select Session down to the left and click on KDE4; then log in. Or right click on the desktop and select Switch user -> Start new session.