thunderbird crashes on startup when vpn connection is running

[eacy]

Binary package hint: thunderbird

Description: Ubuntu 9.10
Release: 9.10

When starting thunderbird while I'm connected via an vpn connection the thunderbird window closes after a few seconds. When starting it from bash, i get the following output, only:

Segmentation fault (core dumped)

thunderbird:
  Installiert: 2.0.0.23+build1+nobinonly-0ubuntu1
  Kandidat: 2.0.0.23+build1+nobinonly-0ubuntu1
  Versions-Tabelle:
 *** 2.0.0.23+build1+nobinonly-0ubuntu1 0
        500 http://de.archive.ubuntu.com karmic/main Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
Architecture: amd64
Date: Fri Oct 30 11:50:30 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/lib/thunderbird/thunderbird-bin
NonfreeKernelModules: nvidia
Package: thunderbird 2.0.0.23+build1+nobinonly-0ubuntu1
ProcCmdline: /usr/lib/thunderbird/thunderbird-bin
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SegvAnalysis:
 Segfault happened at: 0x7f76b055605b <raise+43>: cmp $0xfffffffffffff000,%rax
 PC (0x7f76b055605b) ok
 source "$0xfffffffffffff000" ok
 destination "%rax" ok
 Reason could not be automatically determined.
Signal: 11
SourcePackage: thunderbird
StacktraceTop:
 strcmp () from /lib/libc.so.6
 ?? ()
 XPTC_InvokeByIndex ()
 ?? ()
 ?? ()
Title: thunderbird-bin crashed with SIGSEGV in strcmp()
Uname: Linux 2.6.31-14-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[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 #454974, 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.