For a while now, nautilus has been hanging on startup, not rendering a desktop
or even a background. 

It may or may not be related to the latest update to gtk2, cause it's about that
time the bug started appearing.
Everything else works fine, panels and all.

I got a backtrace, hope it's good enough.
My system is a fully uptodate FC4 system, as of Oct 4 2005, 

[sigge@c213-89-51-50 ~]$ rpm -q gtk2 nautilus
gtk2-2.6.10-2
nautilus-2.10.0-4

Backtrace:
#0  0x006ba402 in ?? ()
#1  0x00e551ae in __lll_mutex_lock_wait () from /lib/libc.so.6
#2  0x00de6238 in _L_mutex_lock_1192 () from /lib/libc.so.6
#3  0xbfd9b098 in ?? ()
#4  0x0000000d in ?? ()
#5  0x00d9b142 in __gconv_transform_ucs2reverse_internal () from /lib/libc.so.6
#6  0x00de3c01 in malloc () from /lib/libc.so.6
#7  0x00de8615 in strdup () from /lib/libc.so.6
#8  0x0030a61c in _gnome_vfs_xdg_hash_append_glob ()
   from /usr/lib/libgnomevfs-2.so.0
#9  0x0030a866 in _gnome_vfs_xdg_glob_read_from_file ()
   from /usr/lib/libgnomevfs-2.so.0
#10 0x00309df0 in _gnome_vfs_xdg_get_mime_type_for_file ()
   from /usr/lib/libgnomevfs-2.so.0
#11 0x003095f4 in _gnome_vfs_xdg_remove_callback ()
   from /usr/lib/libgnomevfs-2.so.0
#12 0x003097a3 in _gnome_vfs_xdg_remove_callback ()
   from /usr/lib/libgnomevfs-2.so.0
#13 0x003099b3 in _gnome_vfs_xdg_mime_type_equal ()
   from /usr/lib/libgnomevfs-2.so.0
#14 0x002f2ff7 in gnome_vfs_mime_type_is_equal ()
   from /usr/lib/libgnomevfs-2.so.0
#15 0x002f305f in gnome_vfs_mime_type_get_equivalence ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/libgnomevfs-2.so.0
#16 0x06ca9af4 in nautilus_file_is_mime_type (file=0x957c040,
    mime_type=0x6ceb4f8 "application/x-desktop") at nautilus-file.c:4866
#17 0x06ca9b67 in nautilus_file_is_nautilus_link (file=0xfffffffc)
    at nautilus-file.c:5148
#18 0x06c91570 in lacks_link_info (file=0x957c040)
    at nautilus-directory-async.c:1755
#19 0x06c8fa96 in is_needy (file=0x957c040, check_missing=Variable
"check_missing" is not available.
)
    at nautilus-directory-async.c:2207
#20 0x06c90044 in file_needs_high_priority_work_done (directory=Variable
"directory" is not available.
)
    at nautilus-directory-async.c:3570
#21 0x06c905cd in nautilus_directory_async_state_changed (directory=0x9575518)
    at nautilus-directory-async.c:3329
#22 0x06c92308 in get_info_callback (handle=0x5, results=0x94282a8,
    callback_data=0xfffffffc) at nautilus-directory-async.c:2816
#23 0x002ecfc6 in _gnome_vfs_job_go () from /usr/lib/libgnomevfs-2.so.0
#24 0x00aae730 in g_child_watch_add () from /usr/lib/libglib-2.0.so.0
#25 0x00aac4ce in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0x00aaf4d6 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#27 0x00aaf7c3 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#28 0x07646a46 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#29 0x08078238 in main (argc=15355892, argv=0xbfd9ba04) at nautilus-main.c:432