Null pointer at PStringOptions::SetAt(char const*, PString const&) ()

Here is the bt:

warning: Can't read pathname for load map: Input/output error.
[Thread debugging using libthread_db enabled]
Core was generated by `ekiga'.
Program terminated with signal 11, Segmentation fault.
#0 0x00000000000000c3 in ?? ()
(gdb) bt
#0 0x00000000000000c3 in ?? ()
#1 0x00007f433a16031c in PStringOptions::SetAt(char const*, PString const&) ()
   from /usr/lib/libopal.so.3.10.2
#2 0x00007f433a13cfef in SIPEndPoint::AdjustToRegistration(OpalTransport const&, SIP_PDU&) () from /usr/lib/libopal.so.3.10.2
#3 0x00007f433a16dad1 in SIP_PDU::SendResponse(OpalTransport&, SIP_PDU&, SIPEndPoint*) const () from /usr/lib/libopal.so.3.10.2
#4 0x00007f433a172b06 in SIPResponse::Send(OpalTransport&, SIP_PDU const&) ()
   from /usr/lib/libopal.so.3.10.2
#5 0x00007f433a13472c in SIPEndPoint::OnReceivedOPTIONS(OpalTransport&, SIP_PDU&) () from /usr/lib/libopal.so.3.10.2
#6 0x00007f433a1422eb in SIPEndPoint::OnReceivedConnectionlessPDU(OpalTransport&, SIP_PDU*) () from /usr/lib/libopal.so.3.10.2
#7 0x00007f433a142ae3 in SIPEndPoint::OnReceivedPDU(OpalTransport&, SIP_PDU*)
    () from /usr/lib/libopal.so.3.10.2
#8 0x00007f433a135242 in SIPEndPoint::HandlePDU(OpalTransport&) ()
   from /usr/lib/libopal.so.3.10.2
#9 0x00007f433a13d92b in SIPEndPoint::NewIncomingConnection(OpalTransport*) ()
   from /usr/lib/libopal.so.3.10.2
#10 0x00007f4339d50289 in OpalEndPoint::ListenerCallback(PThread&, long) ()
   from /usr/lib/libopal.so.3.10.2
#11 0x00007f4339d9162d in OpalListener::ListenForConnections(PThread&, long) ()
   from /usr/lib/libopal.so.3.10.2
#12 0x00007f433951232c in PThread::PX_ThreadStart(void*) ()
   from /usr/lib/libpt.so.2.10.2
#13 0x00007f4336b87efc in start_thread ()
   from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007f4337c7789d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#15 0x0000000000000000 in ?? ()

Seems to happen about 15 seconds after I start ekiga

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ekiga 3.3.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Fri Nov 11 15:07:05 2011
ExecutablePath: /usr/bin/ekiga
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: ekiga
UpgradeStatus: No upgrade log present (probably fresh install)