lost my KDE in 9.3

Doing an upgrade of icewm in 9.3 I ran into troubles with the older version, reason why I uninstalled the old icewm. After there was some complaining from Synaptic I decided to get rid of all old ice files. No idea that iceauth had nothing to do with icewm. Could somebody tell me what part of kde I have to look at in order to get my kde functioning again without loosing too much from my setup?