Version-Release number of selected component:
gnome-boxes-3.6.2-1.fc18

Additional info:
backtrace_rating: 4
cmdline:        gnome-boxes
core_backtrace: 
crash_function: pa_context_set_state_callback
executable:     /usr/bin/gnome-boxes
kernel:         3.6.9-4.1.fc18.i686.PAE
remote_result:  NOTFOUND
uid:            1000
var_log_messages: Dec 11 00:00:17 localhost abrt[29639]: Saved core dump of pid 20974 (/usr/bin/gnome-boxes) to /var/spool/abrt/ccpp-2012-12-11-00:00:14-20974 (1991008256 bytes)
xsession_errors: 

Truncated backtrace:
Thread no. 1 (10 frames)
 #3 pa_context_set_state_callback at pulse/context.c:1051
 #4 spice_pulse_new at spice-pulse.c:799
 #5 spice_audio_new at spice-audio.c:218
 #6 spice_audio_get at spice-audio.c:256
 #7 boxes_spice_display_constructor at spice-display.c:980
 #10 boxes_display_properties_construct at /extra-data/checkout/gnome/gnome-boxes/src/display-properties.vala:4
 #11 boxes_display_construct at display.c:216
 #12 boxes_spice_display_construct at spice-display.c:340
 #13 boxes_spice_display_new at spice-display.c:357
 #14 boxes_libvirt_machine_update_display at libvirt-machine.c:2997