bonobo-activation-server crashed with SIGSEGV in g_type_check_instance_cast()

[TJ]

Spontaneous crash without user intervention afer log-out/log-in.

ProblemType: Crash
Architecture: amd64
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/lib/bonobo-activation/bonobo-activation-server
NonfreeKernelModules: nvidia
Package: libbonobo2-0 2.24.0-0ubuntu1
ProcCmdline: /usr/lib/bonobo-activation/bonobo-activation-server --ac-activate --ior-output-fd=13
ProcEnviron:
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: libbonobo
StacktraceTop:
 g_type_check_instance_cast ()
 ?? () from /usr/lib/libORBit-2.so.0
 ORBit_object_get_connection ()
 CORBA_Object_non_existent ()
 ?? ()
Title: bonobo-activation-server crashed with SIGSEGV in g_type_check_instance_cast()
Uname: Linux 2.6.28-7-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare users video