gnome-appearance-properties crashed with SIGSEGV in meta_theme_get_frame_style()

[Pastito]

Binary package hint: gnome-control-center

I was trying to configure gnome to use the window decorator emerald from compiz (because it doesn't load at start up) when I select "personalizar" (or personalise in english) on my theme and unselected the windows theme that appears (Mista) for an empty space.
And there is where the problem starts, it just crash.
I continue having the problem with emerald and gnome.

ProblemType: Crash
Architecture: i386
CrashCounter: 1
Date: Mon Mar 31 23:37:43 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/gnome-appearance-properties
Package: gnome-control-center 1:2.22.0-0ubuntu3
PackageArchitecture: i386
ProcCmdline: gnome-appearance-properties --show-page=background
ProcEnviron:
 PATH=/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=es_CL.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gnome-control-center
StacktraceTop:
 ?? () from /usr/lib/libmetacity-private.so.0
 ?? ()
 ?? ()
 ?? ()
 meta_theme_get_frame_style ()
Title: gnome-appearance-properties crashed with SIGSEGV in meta_theme_get_frame_style()
Uname: Linux 2.6.24-12-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy lpadmin netdev plugdev powerdev sambashare scanner video