I got serious issue today.
After restarted my computer I get to KDM, choose KDE4 as my session, and login. The splash screen starts (able to move the mouse) and shows the hard drive icon, the screwdriver & wrench icon, the world icon, the desktop icon, and then stops (the KDE logo didn't show up and I can't move my mouse and can't turn on caps lock too at this time)
After restarted my computer I get to KDM, choose KDE4 as my session, and login. The splash screen starts (able to move the mouse) and shows the hard drive icon, the screwdriver & wrench icon, the world icon, the desktop icon, and then stops (the KDE logo didn't show up and I can't move my mouse and can't turn on caps lock too at this time)