Version:           unspecified (using KDE 4.5.5) 
OS:                Linux

Kontact freezes at startup. kmail & korganizer & kadressbook can be started independently

Reproducible: Always

Steps to Reproduce:
Start the program 

Actual Results:  
The overview and the tips screen appear, but nothing can be clicked

Expected Results:  
I should be able to click the welcom screen awya and start working, but the interface is frozen

Linux mandriva 2010.2, kernel version: 2.6.33.7-desktop586-2mnb
Konsole output:
[tomvan@Laptombox ~]$ kontact
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Calling appendChild() on a null node does nothing.
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "QLocalSocket::connectToServer: Invalid name"
kontact(1937)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "QLocalSocket::connectToServer: Invalid name"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "org.freedesktop.DBus.Error.ServiceUnknown - The name org.kde.nepomuk.services.nepomukstorage was not provided by any .service files"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "Unsupported operation (2)": "Invalid model"
"/usr/bin/kontact(1937)" Error in thread 3004286672 : "Invalid iterator."
kontact(1937)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
kontact(1937)/kdeui (kdelibs): No such XML file "/home/tomvan/.kde4/share/apps/kontact/local-kmail.rc" 
kontact(1937) KXMLGUI::ActionList::plug: Index  23  is not within range (0 -  21 
kontact(1937) KXMLGUI::ActionList::plug: Index  23  is not within range (0 -  21 
QWidget::setMinimumSize: (/QWidget) Negative sizes (0,-1) are not possible
QWidget::setMaximumSize: (/QWidget) Negative sizes (16777215,-1) are not possible
kontact(1937)/kio (KDirWatch) KDirWatchPrivate::removeEntry: doesn't know "/home/tomvan/.kde4/share/apps/kabc" 
kontact(1937)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
kontact(1937)/kdeui (kdelibs): No such XML file "/home/tomvan/.kde4/share/apps/kontact/local-calendar.rc" 
kontact(1937)/kdeui (kdelibs): No such XML file "/home/tomvan/.kde4/share/apps/kontact/local-todo.rc" 
<unknown program name>(1963)/ main: Unknown resource type:  "notes" 
kontact(1937)/kdeui (kdelibs): No such XML file "/home/tomvan/.kde4/share/apps/kontact/local-.rc" 
kontact(1937)/kdeui (kdelibs): No such XML file "/home/tomvan/.kde4/share/apps/kontact/default-.rc" 
kontact(1937) KXMLGUI::ActionList::plug: Index  23  is not within range (0 -  21