apport-gtk crashed with IOError in mark_report_seen()

Binary package hint: apport

kmos@KPC2:~$ /usr/share/apport/apport-gtk -c /var/crash/_usr_sbin_NetworkManager.0.crash
Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 252, in <module>
    app.run_argv()
  File "/var/lib/python-support/python2.5/apport/ui.py", line 256, in run_argv
    self.run_crash(self.options.crash_file, False)
  File "/var/lib/python-support/python2.5/apport/ui.py", line 113, in run_crash
    apport.fileutils.mark_report_seen(report_file)
  File "/var/lib/python-support/python2.5/apport/fileutils.py", line 86, in mark_report_seen
    f = open(report)
IOError: [Errno 13] Permission denied: '/var/crash/_usr_sbin_NetworkManager.0.crash'
kmos@KPC2:~$

ProblemType: Crash
ApportLog:
 apport (pid 11898) Thu Aug 9 15:04:53 2007: called for pid 11895, signal 5
 apport (pid 11898) Thu Aug 9 15:04:53 2007: executable: /usr/sbin/NetworkManager (command line "/usr/sbin/NetworkManager --pid-file /var/run/NetworkManager/NetworkManager.pid")
 modinfo: could not open cdrom: No such device
 modinfo: could not open cdrom: No such device
 apport (pid 11898) Thu Aug 9 15:04:56 2007: wrote report /var/crash/_usr_sbin_NetworkManager.0.crash
Architecture: i386
CrashReports:
 600:0:0:72088:2007-08-09 15:08:41.000000000 +0100:2007-08-09 15:08:42.000000000 +0100:/var/crash/_usr_sbin_NetworkManager.0.crash
 600:1000:1000:18262:2007-08-09 15:24:35.000000000 +0100:2007-08-09 15:24:41.000000000 +0100:/var/crash/_usr_share_apport_apport-gtk.1000.crash
Date: Thu Aug 9 15:24:36 2007
DistroRelease: Ubuntu 7.10
ExecutablePath: /usr/share/apport/apport-gtk
InterpreterPath: /usr/bin/python2.5
NonfreeKernelModules: nvidia
Package: apport-gtk 0.94
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gtk -c /var/crash/_usr_sbin_NetworkManager.0.crash
ProcCwd: /home/kmos
ProcEnviron:
 SHELL=/bin/bash
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=pt_PT.UTF-8
PythonArgs: ['/usr/share/apport/apport-gtk', '-c', '/var/crash/_usr_sbin_NetworkManager.0.crash']
SourcePackage: apport
Title: apport-gtk crashed with IOError in mark_report_seen()
Uname: Linux KPC2 2.6.22-9-generic #1 SMP Fri Aug 3 00:50:37 GMT 2007 i686 GNU/Linux