Does not shut down, since upgrade to 9.10

[Bryanr47]

Binary package hint: apport

Since upgrading to 9.10, my system freezes on shut down, and I have to shut off manually.
I am new to this, but I am getting to like it. Please can you advise on my next move ?

ProblemType: Crash
ApportLog:
 apport (pid 20418) Sat Oct 31 22:47:23 2009: called for pid 20417, signal 6
 apport (pid 20418) Sat Oct 31 22:47:23 2009: executable: /usr/sbin/cupsd (command line "/usr/sbin/cupsd")
 apport (pid 20418) Sat Oct 31 22:47:23 2009: Ignoring SIGABRT
Architecture: i386
CrashReports:
 600:0:0:6853:2009-10-31 22:46:20.000000000 +0000:2009-11-01 20:25:21.000000000 +0000:/var/crash/_usr_lib_hal_scripts_hal_lpadmin.0.crash
 600:0:0:29169:2009-11-01 20:25:29.000000000 +0000:2009-11-01 22:23:28.000000000 +0000:/var/crash/_usr_share_apport_apport-gtk.0.crash
Date: Sun Nov 1 20:25:30 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/share/apport/apport-gtk
InterpreterPath: /usr/bin/python2.6
Package: apport-gtk 1.9.3-0ubuntu4
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/share/apport/apport-gtk
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
PythonArgs: ['/usr/share/apport/apport-gtk']
SourcePackage: apport
Title: apport-gtk crashed with OSError in mark_ignore()
Uname: Linux 2.6.31-14-generic i686
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #428289, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Marco Rodrigues (gothicx)]

Could you attach /var/crash/_usr_lib_hal_scripts_hal_lpadmin.0.crash ?

Thank you