What were you doing when the application crashed?
Nautilus crushes every time on clicking on "Properties" Menuitem (right mouse button) of a simple Link (ln -s dirname linkname) placed at the desktop. 



Distribution: Debian lenny/sid
Gnome Release: 2.18.3 2007-07-03 (Debian)
BugBuddy Version: 2.18.1

System: Linux 2.6.21-2-686 #1 SMP Wed Jul 11 03:53:02 UTC 2007 i686
X Vendor: The X.Org Foundation
X Vendor Release: 10300000
Selinux: No
Accessibility: Disabled
GTK+ Theme: Divinorum
Icon Theme: gartoon

Memory status: size: 68984832 vsize: 68984832 resident: 23552000 share: 13488128 rss: 23552000 rss_rlim: 4294967295
CPU usage: start_time: 1194894575 rtime: 377 utime: 340 stime: 37 cutime:0 cstime: 0 timeout: 0 it_real_value: 0 frequency: 100

Backtrace was generated from '/usr/bin/nautilus'

(no debugging symbols found)
Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1".
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb6cca8c0 (LWP 22551)]
(no debugging symbols found)
0xb7f3d7f2 in ?? () from /lib/ld-linux.so.2

+ Trace 177244

----------- .xsession-errors ---------------------
/etc/gdm/PreSession/Default: Registering your session with wtmp and utmp
/etc/gdm/PreSession/Default: running: /usr/bin/sessreg -a -w /var/log/wtmp -u /var/run/utmp -x "/var/lib/gdm/:0.Xservers" -h "" -l ":0" "ps"
/etc/gdm/Xsession: Beginning session setup...
SESSION_MANAGER=local/gw:/tmp/.ICE-unix/22445
(gnome-panel:22552): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width -15 and height 24
Gtk-ERROR **: file /tmp/buildd/gtk+2.0-2.12.1/gtk/gtkliststore.c: line 1677 (gtk_list_store_compare_func): assertion failed: (VALID_ITER (&iter_b, list_store))
aborting...
** (gnome-panel:22552): WARNING **: Invalid borders specified for theme pixmap:
        /home/ps/.themes/Divinorum/gtk-2.0/Buttons/button-normal.png,
borders don't fit within the image
--------------------------------------------------