Xfmedia won't start for me, but runs the CPU; the GUI never shows up.

Here's a backtrace:
[Switching to Thread -1208035200 (LWP 7690)]
0x4e884e76 in __lll_mutex_lock_wait () from /lib/tls/libpthread.so.0
(gdb) bt
#0  0x4e884e76 in __lll_mutex_lock_wait () from /lib/tls/libpthread.so.0
#1  0x4e882558 in _L_mutex_lock_26 () from /lib/tls/libpthread.so.0
#2  0x08102e30 in ?? ()
#3  0x080b73d8 in ?? ()
#4  0x080af260 in ?? ()
#5  0x4de61a9f in XRenderQueryFormats () from /usr/lib/libXrender.so.1
#6  0x4e67fc51 in _XUnregisterFilter () from /usr/X11R6/lib/libX11.so.6
#7  0x4e66bf39 in XrmQGetResource () from /usr/X11R6/lib/libX11.so.6
#8  0x4e64d48d in XGetDefault () from /usr/X11R6/lib/libX11.so.6
#9  0x4e1a615d in _XcursorGetDisplayInfo () from /usr/lib/libXcursor.so.1
#10 0x4e1a61ee in XcursorSupportsARGB () from /usr/lib/libXcursor.so.1
#11 0x4e1a88ff in XcursorNoticeCreateBitmap () from /usr/lib/libXcursor.so.1
#12 0x4e647a83 in _XNoticeCreateBitmap () from /usr/X11R6/lib/libX11.so.6
#13 0x4e647fc6 in XCreatePixmap () from /usr/X11R6/lib/libX11.so.6
#14 0x4e17bfac in gdk_pixmap_new () from /usr/lib/libgdk-x11-2.0.so.0
#15 0x4e154809 in gdk_pixbuf_render_pixmap_and_mask_for_colormap ()
   from /usr/lib/libgdk-x11-2.0.so.0
#16 0x4e072378 in gtk_window_get_decorated () from /usr/lib/libgtk-x11-2.0.so.0
#17 0x4e07262b in gtk_window_get_decorated () from /usr/lib/libgtk-x11-2.0.so.0
#18 0x4e073f9b in gtk_window_reshow_with_initial_size ()
   from /usr/lib/libgtk-x11-2.0.so.0
#19 0x4e7d5c9a in g_cclosure_marshal_VOID__VOID ()
   from /usr/lib/libgobject-2.0.so.0
#20 0x4e7c55bf in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#21 0x4e7c5351 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#22 0x4e7d5080 in g_signal_emit_by_name () from /usr/lib/libgobject-2.0.so.0
#23 0x4e7d48f1 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#24 0x4e7d4b75 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#25 0x4e066a77 in gtk_widget_realize () from /usr/lib/libgtk-x11-2.0.so.0
#26 0x0807ad33 in xfmedia_stock_icons_init ()
#27 0x0807ae8b in xfmedia_squished_stock_icon_load ()
#28 0x08061cec in xfmedia_mainwin_new ()
#29 0x08060025 in main ()

I'm running Ubuntu Hoary and the Xfmedia packages from os-cillation.  Let me
know if there's more information you need.