bug nautilus

vivi@grisu:~$ killall bonobo-activation-server 
vivi@grisu:~$ nautilus
Initializing nautilus-open-terminal extension
seahorse nautilus module initialized
Initializing gnome-mount extension
Initializing nautilus-image-converter extension
ALSA lib confmisc.c:1105:(snd_func_refer) Unable to find definition 'defaults.pcm.dmix_format'
ALSA lib conf.c:3500:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3957:(snd_config_expand) Args evaluate error: No such file or directory
ALSA lib pcm.c:2145:(snd_pcm_open_noupdate) Unknown PCM dmix:CK804
ALSA lib confmisc.c:1105:(snd_func_refer) Unable to find definition 'defaults.pcm.dmix_format'
ALSA lib conf.c:3500:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:3957:(snd_config_expand) Args evaluate error: No such file or directory
ALSA lib pcm.c:2145:(snd_pcm_open_noupdate) Unknown PCM dmix:CK804

** ERROR **: file nautilus-navigation-window.c: line 834 (activate_nth_short_list_item): assertion failed: (index < g_list_length (window->details->short_list_viewers))
aborting...
Aborted (core dumped)
vivi@grisu:~$