with a breakpoint on gnome_url_show_with_env():
...
76 result = gnome_vfs_url_show_with_env (url, envp);
(gdb)
78 switch (result) {
(gdb) p result
$1 = GNOME_VFS_ERROR_LOGIN_FAILED
...
--
edgy: places->network servers error
https://launchpad.net/bugs/66461