Hi,

I am a newbie (installed Knoppix/debian on my hdd 2 months ago).

today I ran "apt-get update" and "apt-get upgrade" as a root, and after upgrade I am presented the KDE login manager.
If I try to log in to KDE desktop it starts loading and when it says "initializing peipherals..." it restart KDE login manager.
If I try the IceWM manager or anything else it is okay. What do I have to do to get the KDE desktop working again?

Please help me fix this problem.
Thanks in advance