Comment 11 for bug 806663

Affects me too, primarily after closing the last window in a set of open windows and thus exit the program. lxpanel heads for 100% on task panel. If terminated, then the lxpanel restarts. If killed, then a terminal has to be used to relaunch lxpanel. I can usually avoid the problem by not closing Libreoffice. FWIW, here are some details on my rig:

Kernel : Linux 3.0.0-14-generic (i686)
Compiled: #23-Ubuntu SMP Mon Nov 21 20:34:47 UTC 2011
Distribution: Ubuntu 11.10
Desktop Environment: LXDE (Lubuntu)
LibreOffice: 1:3.4.4-0ubuntu1
Running on:
-Computer-
Processor : Intel(R) Celeron(R) CPU 3.06GHz
Memory : 2045MB (724MB used)
Operating System : Ubuntu 11.10
Date/Time : Wed 28 Dec 2011 07:42:57 AM PONT
-Display-
Resolution : 1024x768 pixels
OpenGL Renderer : Unknown