My pleasure. What I used is Ubuntu Dapper, and my nautilus is 2.13.3. Followed is the bug-buddy information: Backtrace was generated from '/usr/bin/nautilus-sendto' (no debugging symbols found) Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". (no debugging symbols found) `system-supplied DSO at 0xffffe000' has disappeared; keeping its symbols. (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread -1223682368 (LWP 13039)] (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) 0xffffe410 in __kernel_vsyscall () #0 0xffffe410 in __kernel_vsyscall () #1 0xb7ae0483 in __waitpid_nocancel () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7f0d226 in libgnomeui_module_info_get () from /usr/lib/libgnomeui-2.so.0 #3 #4 0xb7a10b68 in strcmp () from /lib/tls/i686/cmov/libc.so.6 #5 0xb7b23f14 in g_str_equal () from /usr/lib/libglib-2.0.so.0 #6 0xb7aff426 in g_hash_table_lookup () from /usr/lib/libglib-2.0.so.0 #7 0xb7af836f in g_quark_try_string () from /usr/lib/libglib-2.0.so.0 #8 0xb7b8ab7a in g_signal_newv () from /usr/lib/libgobject-2.0.so.0 #9 0xb7b8b9af in g_signal_new_valist () from /usr/lib/libgobject-2.0.so.0 #10 0xb7b8ba66 in g_signal_new () from /usr/lib/libgobject-2.0.so.0 #11 0xb7dc8e2e in gtk_window_get_type () from /usr/lib/libgtk-x11-2.0.so.0 #12 0xb7b96c60 in g_type_class_ref () from /usr/lib/libgobject-2.0.so.0 #13 0xb7b96f0e in g_type_class_ref () from /usr/lib/libgobject-2.0.so.0 #14 0xb7f51b53 in glade_standard_build_widget () from /usr/lib/libglade-2.0.so.0 #15 0xb7f522ee in glade_xml_build_widget () from /usr/lib/libglade-2.0.so.0 #16 0xb7f51022 in glade_flags_from_string () from /usr/lib/libglade-2.0.so.0 #17 0xb7f4f833 in glade_xml_construct () from /usr/lib/libglade-2.0.so.0 #18 0xb7f4f790 in glade_xml_new () from /usr/lib/libglade-2.0.so.0 #19 0x0804a6dc in nautilus_sendto_create_ui () #20 0x0804ade4 in main () Thread 1 (Thread -1223682368 (LWP 13039)): #0 0xffffe410 in __kernel_vsyscall () No symbol table info available. #1 0xb7ae0483 in __waitpid_nocancel () from /lib/tls/i686/cmov/libpthread.so.0 No symbol table info available. #2 0xb7f0d226 in libgnomeui_module_info_get () from /usr/lib/libgnomeui-2.so.0 No symbol table info available. #3 No symbol table info available. #4 0xb7a10b68 in strcmp () from /lib/tls/i686/cmov/libc.so.6 No symbol table info available. #5 0xb7b23f14 in g_str_equal () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #6 0xb7aff426 in g_hash_table_lookup () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #7 0xb7af836f in g_quark_try_string () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #8 0xb7b8ab7a in g_signal_newv () from /usr/lib/libgobject-2.0.so.0 No symbol table info available. #9 0xb7b8b9af in g_signal_new_valist () from /usr/lib/libgobject-2.0.so.0 No symbol table info available. #10 0xb7b8ba66 in g_signal_new () from /usr/lib/libgobject-2.0.so.0 No symbol table info available. #11 0xb7dc8e2e in gtk_window_get_type () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #12 0xb7b96c60 in g_type_class_ref () from /usr/lib/libgobject-2.0.so.0 No symbol table info available. #13 0xb7b96f0e in g_type_class_ref () from /usr/lib/libgobject-2.0.so.0 No symbol table info available. #14 0xb7f51b53 in glade_standard_build_widget () from /usr/lib/libglade-2.0.so.0 No symbol table info available. #15 0xb7f522ee in glade_xml_build_widget () from /usr/lib/libglade-2.0.so.0 No symbol table info available. #16 0xb7f51022 in glade_flags_from_string () from /usr/lib/libglade-2.0.so.0 No symbol table info available. #17 0xb7f4f833 in glade_xml_construct () from /usr/lib/libglade-2.0.so.0 No symbol table info available. #18 0xb7f4f790 in glade_xml_new () from /usr/lib/libglade-2.0.so.0 No symbol table info available. #19 0x0804a6dc in nautilus_sendto_create_ui () No symbol table info available. #20 0x0804ade4 in main () No symbol table info available. #0 0xffffe410 in __kernel_vsyscall ()