No me salen los paneles en Xubuntu

Buenas, el otro día estaba yo tan tranquilo con xubuntu y se fué la luz de repente. Lo volví a iniciar y no me salían los paneles, solo salían los iconos de mi escritorio y no daba ningún mensaje de error, me salieron los programas de la anterior sesión pero lo que es el xfce estaba como "dormido", total, he tenido que instalar kde; pero ni de lejos me gusta más que el xfce y ya me va, pero no me va el xfce ni por casualidad.
P.D.: antes de que me lo digáis, ya he probado a reinstalarlo haciendo:
sudo apt-get autoremove xubuntu desktop
y
sudo apt-get install xubuntu desktop
EDITO: ahora sí que me ha salido el mensaje de error, voy a adjuntarlo ;-)

Memory status: size: 27279360 vsize: 0 resident: 27279360 share: 0 rss: 9527296 rss_rlim: 0
CPU usage: start_time: 1169814539 rtime: 0 utime: 17 stime: 0 cutime:12 cstime: 0 timeout: 5 it_real_value: 0 frequency: 0

Backtrace was generated from '/usr/libexec/evolution-alarm-notify'

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Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread -1232550224 (LWP 4592)]
[New Thread -1234437216 (LWP 4600)]
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0xffffe410 in __kernel_vsyscall ()
#0 0xffffe410 in __kernel_vsyscall ()
#1 0xb73176cb in waitpid () from /lib/tls/i686/cmov/libc.so.6
#2 0xb7e3a1b6 in gnome_gtk_module_info_get () from /usr/lib/libgnomeui-2.so.0
#3
#4 0xffffe410 in __kernel_vsyscall ()
#5 0xb72b2770 in raise () from /lib/tls/i686/cmov/libc.so.6
#6 0xb72b3ef3 in abort () from /lib/tls/i686/cmov/libc.so.6
#7 0xb7484122 in g_logv () from /usr/lib/libglib-2.0.so.0
#8 0xb7484159 in g_log () from /usr/lib/libglib-2.0.so.0
#9 0x0805d500 in main ()

Thread 2 (Thread -1234437216 (LWP 4600)):
#0 0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb734c803 in poll () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2 0xb747e813 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#3 0xb747eb89 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#4 0xb7a187e0 in link_set_io_thread () from /usr/lib/libORBit-2.so.0
No symbol table info available.
#5 0xb749938f in g_thread_create_full () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#6 0xb70c0504 in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
#7 0xb735651e in clone () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.

Thread 1 (Thread -1232550224 (LWP 4592)):
#0 0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb73176cb in waitpid () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2 0xb7e3a1b6 in gnome_gtk_module_info_get () from /usr/lib/libgnomeui-2.so.0
No symbol table info available.
#3
No symbol table info available.
#4 0xffffe410 in __kernel_vsyscall ()
No symbol table info available.
#5 0xb72b2770 in raise () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#6 0xb72b3ef3 in abort () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#7 0xb7484122 in g_logv () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#8 0xb7484159 in g_log () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#9 0x0805d500 in main ()
No symbol table info available.
#0 0xffffe410 in __kernel_vsyscall ()
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