notification-daemon crashed with SIGSEGV in strcmp()

[Perfecto]

Binary package hint: notification-daemon

It crashed after pressing "Preview" in General Options of Notification Settings (Pop-up Notifications in the Control Panel).
After a while it works perfectly.
Could it be related to the windows decorator? I suggest this because I have problems with it, the windows frames aren't show until the system wants to show them. I haven't found a solution searching on Internet yet.

ProblemType: Crash
Architecture: amd64
CrashCounter: 1
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/lib/notification-daemon/notification-daemon
Package: notification-daemon 0.4.0-0ubuntu2
ProcCmdline: /usr/lib/notification-daemon/notification-daemon
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=es_ES.UTF-8
Signal: 11
SourcePackage: notification-daemon
StacktraceTop:
 strcmp () from /lib/libc.so.6
 IA__g_str_equal (v1=0x7fb046d915d8,
 IA__g_hash_table_lookup (hash_table=0x15c0c00,
 IA__g_intern_static_string (
 sexy_url_label_get_type ()
Title: notification-daemon crashed with SIGSEGV in strcmp()
Uname: Linux 2.6.28-5-generic x86_64
UserGroups: adm admin audio cdrom clamav dialout dip fax floppy flumotion fuse gnokii lpadmin netdev plugdev pulse pulse-access pulse-rt sambashare saned scanner tape users vdr video