What were you doing when the application crashed?
I double clicked on the Magnatune Entry in the left "Sources" Pane. RythmBox checked the cache and was about to start playing a ramdom music file from Magnatune.


Distribution: Fedora release 7 (Moonshine)
Gnome Release: 2.18.2 2007-05-28 (Red Hat, Inc)
BugBuddy Version: 2.18.0

System: Linux 2.6.21-1.3228.fc7 #1 SMP Tue Jun 12 14:56:37 EDT 2007 x86_64
X Vendor: The X.Org Foundation
X Vendor Release: 10300000
Selinux: Permissive
Accessibility: Disabled
GTK+ Theme: Clearlooks
Icon Theme: Clearlooks

Memory status: size: 737615872 vsize: 737615872 resident: 75390976 share: 32165888 rss: 75390976 rss_rlim: 18446744073709551615
CPU usage: start_time: 1183683203 rtime: 2023 utime: 1868 stime: 155 cutime:2 cstime: 0 timeout: 0 it_real_value: 0 frequency: 100

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

(no debugging symbols found)
Using host libthread_db library "/lib64/libthread_db.so.1".
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 46912496331328 (LWP 4872)]
[New Thread 1147169104 (LWP 4929)]
[New Thread 1105209680 (LWP 4913)]
[New Thread 1094719824 (LWP 4876)]
(no debugging symbols found)
0x0000003d12a0d89f in waitpid () from /lib64/libpthread.so.0

+ Trace 145804

----------- .xsession-errors ---------------------
20:18:55 : Getting packages : available
20:18:55 : Found 8616 available packages
20:18:55 : Sorting packages
20:18:57 : Population view with packages
20:18:58 : Population Completed
20:20:54 : Getting packages : installed
20:20:54 : Found 2 installed packages
20:20:54 : Getting packages : available
20:20:57 : Found 10 available packages
20:20:57 : Sorting packages
20:20:57 : Population view with packages
20:20:57 : Population Completed
** Message: don't know how to handle audio/mpeg, mpegversion=(int)1, layer=(int)3
rhythmbox: Python/ceval.c:2626: PyEval_EvalCodeEx: Assertion `tstate != ((void *)0)' failed.
sys:1: Warning: invalid unclassed pointer in cast to `GstGnomeVFSSrc'
--------------------------------------------------