Result from the cli:

rick@rickubuntu:~$ gnome-panel

(gnome-panel:9023): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width -3 and height 24
*** glibc detected *** gnome-panel: munmap_chunk(): invalid pointer: 0xbfec4454 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(cfree+0x1bb)[0xb754cf3b]
/usr/lib/libglib-2.0.so.0(g_free+0x31)[0xb7785131]
/usr/lib/gnome-panel/libclock-applet.so[0xb6340cf4]
/usr/lib/gnome-panel/libclock-applet.so[0xb634175e]
/usr/lib/gnome-panel/libclock-applet.so[0xb634479f]
/usr/lib/libpanel-applet-2.so.0(panel_applet_marshal_BOOLEAN__STRING+0x5e)[0xb5b7faee]
/usr/lib/libgobject-2.0.so.0(g_closure_invoke+0x12b)[0xb77ef62b]
/usr/lib/libbonobo-2.so.0(bonobo_closure_invoke_va_list+0x254)[0xb7e4a084]
/usr/lib/libbonobo-2.so.0(bonobo_closure_invoke+0x1ec)[0xb7e4a2ec]
/usr/lib/libpanel-applet-2.so.0[0xb5b7e796]
/usr/lib/libgobject-2.0.so.0(g_cclosure_marshal_VOID__VOID+0x49)[0xb77fc9d9]
/usr/lib/libgobject-2.0.so.0(g_closure_invoke+0x12b)[0xb77ef62b]
/usr/lib/libgobject-2.0.so.0[0xb7800103]
/usr/lib/libgobject-2.0.so.0(g_signal_emit_valist+0x8c7)[0xb7801627]
/usr/lib/libgobject-2.0.so.0(g_signal_emit+0x29)[0xb78017e9]
/usr/lib/libbonoboui-2.so.0[0xb7ef140b]
/usr/lib/libbonobo-2.so.0(_ORBIT_skel_small_Bonobo_Control_setFrame+0x21)[0xb7e4ced1]
/usr/lib/libORBit-2.so.0(ORBit_c_stub_invoke+0x120)[0xb787f930]
/usr/lib/libbonobo-2.so.0(Bonobo_Control_setFrame+0x74)[0xb7e51d44]
/usr/lib/libbonoboui-2.so.0(bonobo_control_frame_bind_to_control+0x12f)[0xb7eeec4f]
/usr/lib/libbonoboui-2.so.0(bonobo_widget_construct_control_from_objref+0x48)[0xb7f12bd8]
/usr/lib/libbonoboui-2.so.0(bonobo_widget_new_control_from_objref+0x58)[0xb7f13378]
gnome-panel[0x8086389]
/usr/lib/libbonobo-2.so.0[0xb7e3a9f1]
/usr/lib/libbonobo-2.so.0[0xb7e3ad2f]
/usr/lib/libORBit-2.so.0[0xb7871d31]
/usr/lib/libORBit-2.so.0(giop_invoke_async+0x98)[0xb786b838]
/usr/lib/libORBit-2.so.0(giop_connection_handle_input+0x3b6)[0xb786edb6]
/usr/lib/libORBit-2.so.0[0xb788c6ed]
/usr/lib/libORBit-2.so.0[0xb788f5de]
/usr/lib/libglib-2.0.so.0(g_main_context_dispatch+0x182)[0xb777ddf2]
/usr/lib/libglib-2.0.so.0[0xb7780dcf]
/usr/lib/libglib-2.0.so.0(g_main_loop_run+0x1a9)[0xb7781179]
/usr/lib/libgtk-x11-2.0.so.0(gtk_main+0xb4)[0xb7b77fa4]
gnome-panel(main+0x18c)[0x806399c]
/lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb74f7ebc]
gnome-panel[0x8062df1]
======= Memory map: ========
08048000-080c0000 r-xp 00000000 08:01 3698381    /usr/bin/gnome-panel
080c0000-080c3000 rw-p 00077000 08:01 3698381    /usr/bin/gnome-panel
080c3000-08338000 rw-p 080c3000 00:00 0          [heap]
b40f4000-b5b43000 r--p 00000000 08:01 2779842    /usr/share/icons/crystalsvg/icon-theme.cache
b5b43000-b5b44000 r-xp 00000000 08:01 3699181    /usr/lib/libXRes.so.1.0.0
b5b44000-b5b45000 rw-p 00001000 08:01 3699181    /usr/lib/libXRes.so.1.0.0
b5b45000-b5b73000 r-xp 00000000 08:01 3695709    /usr/lib/libwnck-1.so.18.2.7
b5b73000-b5b75000 rw-p 0002d000 08:01 3695709    /usr/lib/libwnck-1.so.18.2.7
b5b75000-b5b82000 r-xp 00000000 08:01 3698350    /usr/lib/libpanel-applet-2.so.0.2.15
b5b82000-b5b83000 rw-p 0000c000 08:01 3698350    /usr/lib/libpanel-applet-2.so.0.2.15
b5b92000-b5b96000 r-xp 00000000 08:01 4072563    /usr/lib/gtk-2.0/2.10.0/loaders/libpixbufloader-png.so
b5b96000-b5b97000 rw-p 00003000 08:01 4072563    /usr/lib/gtk-2.0/2.10.0/loaders/libpixbufloader-png.so
b5b98000-b5bf8000 rw-s 00000000 00:08 2228236    /SYSV00000000 (deleted)
b5bf8000-b5c07000 r-xp 00000000 08:01 2011359    /lib/libbz2.so.1.0.3
b5c07000-b5c08000 rw-p 0000f000 08:01 2011359    /lib/libbz2.so.1.0.3
b5c08000-b5c38000 r-xp 00000000 08:01 3702434    /usr/lib/libcroco-0.6.so.3.0.1
b5c38000-b5c3b000 rw-p 0002f000 08:01 3702434    /usr/lib/libcroco-0.6.so.3.0.1
b5c3b000-b5c67000 r-xp 00000000 08:01 3702697    /usr/lib/libgsf-1.so.114.0.3
b5c67000-b5c6a000 rw-p 0002b000 08:01 3702697    /usr/lib/libgsf-1.so.114.0.3
b5c6a000-b5c6b000 rw-p b5c6a000 00:00 0 
b5c6b000-b5c9a000 r-xp 00000000 08:01 3696719    /usr/lib/librsvg-2.so.2.16.0
b5c9a000-b5c9b000 rw-p 0002f000 08:01 3696719    /usr/lib/librsvg-2.so.2.16.0
b5c9b000-b5c9d000 r-xp 00000000 08:01 3697389    /usr/lib/liblpint-bonobo.so.0.0.0
b5c9d000-Aborted (core dumped)