I had OpenSuSE 11.1 64-bit and KDE 3.5 (active) and KDE 4.1.3 (not used). After KDE 4.2 have been released, I have installed it (from factory repo). However, my KDM login screen have gone, and I cannot switch session to KDE 4.2. Oddly enough, after KDM fails, I can still start KDE 3.5 with "startx".

Anyone have a clue what might go wrong?

Thanks in advance for any suggestion(s).