gnome shell can't kill gnome panel

[JoeHill <joehill teksavvy com>]

When I run gnome-shell --replace, the panel disappears for a moment, then
returns, and I get no gnome shell. This is the output:

joehill node1:~/gnome-shell/source/gnome-shell/src$ ./gnome-shell --replace
Checking for Xgl: Traceback (most recent call last):
  File "./gnome-shell", line 263, in <module>
    kill_gnome_panel(gnome_panel_pid)
  File "./gnome-shell", line 51, in kill_gnome_panel
    "-p", pid], stdout=devnull, stderr=devnull)
  File "/usr/lib/python2.5/subprocess.py", line 444, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/usr/lib/python2.5/subprocess.py", line 594, in __init__
    errread, errwrite)
  File "/usr/lib/python2.5/subprocess.py", line 1153, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
joehill node1:~/gnome-shell/source/gnome-shell/src$ not present. 
A panel is already running.
Detected PCI ID for VGA: 01:00.0 0300: 10de:02e1 (rev a2) (prog-if 00 [VGA
controller]) Checking for texture_from_pixmap: present. 
Checking for non power of two support: present. 
Checking for Composite extension: present. 
Comparing resolution (1280x1024) to maximum 3D texture size (4096): Passed.
Checking for nVidia: present. 
No nvidia-settings program available to determine VideoRam.Checking for
FBConfig: present. Checking for Xgl: not present. 
Starting emerald
Attempted to unregister path (path[0] = org path[1] = freedesktop) which isn't
registered Attempted to unregister path (path[0] = org path[1] = freedesktop)
which isn't registered Attempted to unregister path (path[0] = org path[1] =
freedesktop) which isn't registered Backend     : ini
Integration : true
Profile     : default
Adding core settings (General Options)
Adding plugin gears (gears)
Adding plugin fs (fs)
Adding plugin wallpaper (wallpaper)
Adding plugin fadedesktop (fadedesktop)
Adding plugin screenshot (screenshot)
Adding plugin bench (bench)

...

everything after that appears normal. Am I still missing something?

Thanks!


-- 
J