Version:            (using Devel)
Installed from:    Compiled sources

Anwendung: Plasma-Arbeitsfläche (plasma), Signal SIGSEGV
[?1034h[Thread debugging using libthread_db enabled]
[New Thread 0xb599c9e0 (LWP 3487)]
[New Thread 0xb4153b90 (LWP 3488)]
[KCrash handler]
#6  0xb76ba44a in KConfigGroup::config () from /usr/lib/libkdecore.so.5
#7  0xb7fc076e in Plasma::Containment::addApplet (this=0x819ae90, 
    applet=0x8168ba8, pos=@0xbf9d0d10, delayInit=false)
    at /usr/src/debug/kdebase-workspace-4.0.98/libs/plasma/containment.cpp:586
#8  0xb7fc0980 in Plasma::ContainmentPrivate::addApplet (this=0x8104440, 
    name=@0xbf9d0f20, args=@0xbf9d0f1c, appletGeometry=@0xbf9d0e30, id=0, 
    delayInit=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.0.98/libs/plasma/containment.cpp:1267
#9  0xb7fc0a59 in Plasma::Containment::addApplet (this=0x819ae90, 
    name=@0xbf9d0f20, args=@0xbf9d0f1c, appletGeometry=@0xbf9d0e30)
    at /usr/src/debug/kdebase-workspace-4.0.98/libs/plasma/containment.cpp:523
#10 0xb8086112 in DesktopCorona::loadDefaultLayout (this=0x80697a8)
    at /usr/src/debug/kdebase-workspace-4.0.98/plasma/plasma/desktopcorona.cpp:161
#11 0xb7fc8146 in Plasma::Corona::initializeLayout (this=0x80697a8, 
    configName=@0xbf9d1038)
    at /usr/src/debug/kdebase-workspace-4.0.98/libs/plasma/corona.cpp:237
#12 0xb80930a6 in PlasmaApp::corona (this=0x8060148)
    at /usr/src/debug/kdebase-workspace-4.0.98/plasma/plasma/plasmaapp.cpp:389
#13 0xb80953cf in PlasmaApp (this=0x8060148, display=0x80584e0, 
    visual=134610976, colormap=60817409)
    at /usr/src/debug/kdebase-workspace-4.0.98/plasma/plasma/plasmaapp.cpp:213
#14 0xb80954f1 in PlasmaApp::self ()
    at /usr/src/debug/kdebase-workspace-4.0.98/plasma/plasma/plasmaapp.cpp:109
#15 0xb80892ca in kdemain (argc=1, argv=0xbf9d12d4)
    at /usr/src/debug/kdebase-workspace-4.0.98/plasma/plasma/main.cpp:51
#16 0x08048802 in main (argc=1610612736, argv=0x880816c3)
    at /usr/src/debug/kdebase-workspace-4.0.98/build/plasma/plasma/plasma-qgv_dummy.cpp:3
#0  0xffffe430 in __kernel_vsyscall ()


and konsole output:
dorian@KAFFEETRINKEN:~> plasma
Plasma crashed, attempting to automatically recover
KCrash: Application 'plasma' crashing...
sock_file=/home/dorian/.kde4/socket-KAFFEETRINKEN/kdeinit4__0
plasma(3486): Communication problem with  "plasma" , it probably crashed.
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Message did not receive a reply (timeout by message bus)" "

dorian@KAFFEETRINKEN:~> plasma(3490): Communication problem with  "plasma" , itprobably crashed.
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Message did not receive a reply (timeout by message bus)" "


It happens every time now, even if I delete the .kde4 dir to reset.