[snip] > Starting kde display manager: kdm/usr/bin/X11/kdm: error in loading shared > libraries > libkdecore.sp.0: can not open shared object file: No such file or > directory > . [snip]
Have you set up your KDEDIR variable, and got your PATH right? If not, there's a document explaining how to set up kde on the kde website (www.kde.org)