What were you doing when the application crashed?
I right-clicked the icon on the panel while the app was maximized and it caused it to crash.


Distribution: Fedora release 7 (Moonshine)
Gnome Release: 2.18.3 2007-07-02 (Red Hat, Inc)
BugBuddy Version: 2.18.0

System: Linux 2.6.22.1-41.fc7 #1 SMP Fri Jul 27 18:10:34 EDT 2007 i686
X Vendor: The X.Org Foundation
X Vendor Release: 10300000
Selinux: No
Accessibility: Disabled
GTK+ Theme: Clearlooks
Icon Theme: Fedora

Memory status: size: 247304192 vsize: 247304192 resident: 173502464 share: 22769664 rss: 173502464 rss_rlim: 4294967295
CPU usage: start_time: 1187555474 rtime: 1938 utime: 1892 stime: 46 cutime:10 cstime: 3 timeout: 0 it_real_value: 0 frequency: 100

Backtrace was generated from '/usr/bin/rhythmbox'

(no debugging symbols found)
Using host libthread_db library "/lib/libthread_db.so.1".
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1208251856 (LWP 3714)]
[New Thread -1257428080 (LWP 3727)]
[New Thread -1220412528 (LWP 3722)]
[New Thread -1235223664 (LWP 3719)]
(no debugging symbols found)
0x00110402 in __kernel_vsyscall ()

+ Trace 156418

----------- .xsession-errors ---------------------
Traceback (most recent call last):
  File "/usr/lib/rhythmbox/plugins/magnatune/MagnatuneSource.py", line 312, in __download_update_cb
    out.write(catalog.read("opt/magnatune/info/song_info.xml"))
  File "/usr/lib/python2.5/zipfile.py", line 471, in read
    zinfo = self.getinfo(name)
  File "/usr/lib/python2.5/zipfile.py", line 462, in getinfo
    return self.NameToInfo[name]
KeyError: 'opt/magnatune/info/song_info.xml'
(rhythmbox:3714): libgnomevfs-WARNING **: trying to read a non-existing handle
(rhythmbox:3714): libgnomevfs-CRITICAL **: gnome_vfs_close_cancellable: assertion `handle != NULL' failed
GThread-ERROR **: file gthread-posix.c: line 171 (): error 'Device or resource busy' during 'pthread_mutex_destroy ((pthread_mutex_t *) mutex)'
aborting...
--------------------------------------------------