audacious crashed with SIGSEGV in g_type_check_instance_cast()

[NickRickard]

Binary package hint: audacious

Ubuntu Hardy Beta (up to date as of 30 Mar 08).
Audacious 1.5.0-2
Tried to open Audacious (having just installed it via Synaptic) from the menu and got this crash.

ProblemType: Crash
Architecture: i386
Date: Sun Mar 30 18:53:11 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/audacious
Package: audacious 1.5.0-2
PackageArchitecture: i386
ProcCmdline: audacious
ProcEnviron:
 PATH=/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: audacious
StacktraceTop:
 g_type_check_instance_cast ()
 ?? ()
 ?? () from /usr/lib/audacious/Output/libcrossfade.so
 ?? ()
 ?? ()
Title: audacious crashed with SIGSEGV in g_type_check_instance_cast()
Uname: Linux 2.6.24-12-server i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev pulse-access scanner staff video