apport-gtk crashed with IOError in mark_report_seen()

Binary package hint: apport

don't know what happened, it wouldn't send a "_usr_bin_gnome-system-log.0.crash" report when I double-clicked on that file in nautilus

ProblemType: Crash
Architecture: i386
Date: Tue Feb 19 09:59:34 2008
DistroRelease: Ubuntu 7.10
ExecutablePath: /usr/share/apport/apport-gtk
InterpreterPath: /usr/bin/python2.5
NonfreeKernelModules: nvidia
Package: apport-gtk 0.98
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gtk -c /var/crash/_usr_bin_gnome-system-log.0.crash
ProcCwd: /home/brianphillips
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/share/apport/apport-gtk', '-c', '/var/crash/_usr_bin_gnome-system-log.0.crash']
SourcePackage: apport
Title: apport-gtk crashed with IOError in mark_report_seen()
Uname: Linux lubu 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686 GNU/Linux