notify-osd crashed with SIGSEGV in _XReply()

[nakki]

Binary package hint: notify-osd

i was watching a video and i pressed the button to decrease the volume and a crash report appeared

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/lib/notify-osd/notify-osd
Package: notify-osd 0.9.7-0ubuntu1
ProcCmdline: /usr/lib/notify-osd/notify-osd
ProcEnviron:
 SHELL=/bin/bash
 LANG=it_IT.UTF-8
Signal: 11
SourcePackage: notify-osd
StacktraceTop:
 _XReply () from /usr/lib/libX11.so.6
 XGetWindowProperty () from /usr/lib/libX11.so.6
 XGetClassHint () from /usr/lib/libX11.so.6
 defaults_get_top_corner ()
 stack_notify_handler ()
Title: notify-osd crashed with SIGSEGV in _XReply()
Uname: Linux 2.6.28-11-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare