Steps to reproduce:
1. Configure the dummy display, enable the orca full screen magnification with dummy screen.
2. Invoke rhythmbox, select top menu Music->Import file menu item.
3. Choose a music clip in nautilus file picker, import



Stack trace:
3386:   rhythmbox
-----------------  lwp# 1 / thread# 1  --------------------
 d2b3e5a5 waitid   (0, d55, 8046500, 3)
 d2b31516 waitpid  (d55, 8046614, 0) + 70
 d1cb8972 libgnomeui_segv_handle (6, 0, 80466c0) + ba
 d2b3cc2f __sighndlr (6, 0, 80466c0, d1cb88b8) + f
 d2b321ab call_user_handler (6, 0, 80466c0) + 2b8
 d2b32352 sigacthandler (6, 0, 80466c0) + c2
 --- called from signal handler with signal 6 (SIGABRT) ---
 d2b3e135 _lwp_kill (1, 6) + 15
 d2af64a2 raise    (6) + 22
 d2ad4ad4 abort    (0, 0, d2121e44, 0, 8999af0, 1) + 64
 d20bb1f4 g_logv   (0, 8, cf7b301c, 8046dfc) + 340
 d20bb21d g_log    (0, 8, cf7b301c, cf7b3008, b0, cf7b2fec) + 25
 cf7ad07d atk_relation_set_get_n_relations (0, 0, cf2e3148, cfb66c94, cfb3a0c1, 0) + 5d
 cf2bdc61 impl_accessibility_accessible_get_relation_set (89e2f64, 804702c) + 3d
 cf2bb409 _ORBIT_skel_small_Accessibility_Accessible_getRelationSet (89e2f64, 8046f30, 0, 8046ee0, 804702c, cf2bdc24) + 11
 cfb4129a ORBit_POAObject_invoke (89e4ef8, 8046f30, 0, 8046ee0, 8046f68, 804702c) + 22
 cfb45689 ORBit_OAObject_invoke (89e4ef8, 8046f30, 0, 8046ee0, 8046f68, 804702c) + 21
 cfb3308b ORBit_small_invoke_adaptor (89e4ef8, 89f9360, cf2e0a48, 8046f68, 804702c) + 2b3
 cfb416d2 ORBit_POAObject_handle_request (89e4ef8, 881a664, 0, 0, 0, 89f9360) + 32a
 cfb41ad0 ORBit_POAObject_invoke_incoming_request (89e4ef8, 89f9360, 804702c) + 54
 cfb41f56 ORBit_POA_handle_request (8187890, 89f9360, 89f9378) + 2ea
 cfb45487 ORBit_handle_request (8187818, 89f9360) + 4b
 cfb3027a giop_connection_handle_input (83cc100) + 2e2
 cfb4b6b1 link_connection_io_handler (0, 1, 83cc100) + 55
 cfb4d2d5 link_source_dispatch (841a818, cfb4b65c, 83cc100) + 41
 d20b371d g_main_dispatch (8171a40) + 1d9
 d20b480d g_main_context_dispatch (8171a40) + 85
 d20b4c2a g_main_context_iterate (8171a40, 1, 1, 8100378) + 3ce
 d20b522c g_main_loop_run (888d4f8) + 1b8
 d258ad36 gtk_main (8047400, 80472e8, d2bfb7c0, d2b3fce5, d2ac639c, 29) + b2
 08079487 main     (1, 804732c, 8047334) + 497
 08078332 _start   (1, 8047468, 0, 8047472, 8047493, 80474c7) + 7a
-----------------  lwp# 6 / thread# 6  --------------------
 d2b3cb89 lwp_park (0, ce2fde38, 0)
 d2b36d02 cond_wait_queue (88c0dc0, 8241088, ce2fde38, 0) + 3e
 d2b37097 cond_wait_common (88c0dc0, 8241088, ce2fde38) + 1e1
 d2b372bc _cond_timedwait (88c0dc0, 8241088, ce2fdeb8) + 4a
 d2b3734b cond_timedwait (88c0dc0, 8241088, ce2fdeb8) + 27
 d2b37388 pthread_cond_timedwait (88c0dc0, 8241088, ce2fdeb8) + 21
 d1e7165e g_cond_timed_wait_posix_impl (88c0dc0, 8241088, ce2fdf48) + 5a
 d20958f7 g_async_queue_pop_intern_unlocked (8241068, 0, ce2fdf48) + 8b
 d2095d14 g_async_queue_timed_pop (8241068, ce2fdf48) + 5c
 080b04a5 read_queue (8241068, 82458b4) + 85
 080b0c62 action_thread_main (8245820) + 2a
 d20ce966 g_thread_create_proxy (891d9b0) + 11a
 d2b3c8d2 _thr_setup (ceb00000) + 52
 d2b3cb30 _lwp_start (ceb00000, 0, 0, 0, 0, 0)


Other information:
This bug can be found with rhythmbox0.9.8 and gnome2.17.91.