Plasma Desktop crashes when clicking replay

[Xwarman]

Binary package hint: kdepim

When I click on the "Antworten" Button (answer or replay) the hole kDesktop crashes and go back to login screen. That happens not ever but now it was the second time I had this error.

ProblemType: Bug
Architecture: amd64
Date: Thu Feb 11 18:17:43 2010
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/kontact
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
NonfreeKernelModules: nvidia
Package: kontact 4:4.3.2-0ubuntu6
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
SourcePackage: kdepim
Uname: Linux 2.6.31-19-generic x86_64
XsessionErrors:
 (firefox:6037): GLib-WARNING **: g_set_prgname() called multiple times
 (polkit-gnome-authentication-agent-1:6038): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed

[Jonathan Thomas (echidnaman)]

From the symptoms it would appear X is crashing, which is a problem with the nvidia graphics driver stack.

[Bryce Harrington (bryce)]

Sorry, this seems to be a non-specific crash in kde without a valid stack trace. It cannot be analyzed as reported.

[Xwarman (xwarman)]

It does not happen in lucid anymore.i never had that error again since beta 1