unstoppable (probably) gnome-panel looping crash

Binary package hint: gnome-panel

hi, i think i found a really annoying bug..
i was plugging an usb pen, unpacking an iso file, and inserted a cdrw with cda tracks about 10-15 seconds before, when bug-buddy came out with this message:

The information about the crash has been successfully collected.

The application that crashed is not known to bug-buddy, therefore the bug report can not be sent to the GNOME Bugzilla. Please save the bug to a text file and report it to the appropriate bug tracker for this application.

here's the log:

Memory status: size: 137318400 vsize: 137318400 resident: 17932288 share: 12238848 rss: 17932288 rss_rlim: -1
CPU usage: start_time: 1164800413 rtime: 57 utime: 51 stime: 6 cutime:0 cstime: 0 timeout: 0 it_real_value: 0 frequency: 100

Backtrace was generated from '/usr/bin/gnome-panel'

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Using host libthread_db library "/lib/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread 47105343716512 (LWP 5027)]
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0x00002ad78df0deb5 in waitpid () from /lib/libpthread.so.0
#0 0x00002ad78df0deb5 in waitpid () from /lib/libpthread.so.0
#1 0x00002ad78bda2a07 in gnome_gtk_module_info_get ()
   from /usr/lib64/libgnomeui-2.so.0
#2 <signal handler called>
#3 0x00002ad78e04747b in raise () from /lib/libc.so.6
#4 0x00002ad78e048da0 in abort () from /lib/libc.so.6
#5 0x00002ad78dbb8d70 in g_logv () from /usr/lib64/libglib-2.0.so.0
#6 0x00002ad78dbb8df3 in g_log () from /usr/lib64/libglib-2.0.so.0
#7 0x00002ad78dbb8e76 in g_assert_warning () from /usr/lib64/libglib-2.0.so.0
#8 0x00002ad78ca4c948 in gtk_recent_info_get_short_name ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#9 0x00002ad78ca4c98b in gtk_recent_info_get_display_name ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#10 0x00002ad78ca48c4b in gtk_recent_chooser_menu_new ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#11 0x00002ad78dbb0c84 in g_main_context_dispatch ()
   from /usr/lib64/libglib-2.0.so.0
#12 0x00002ad78dbb3acd in g_main_context_check ()
   from /usr/lib64/libglib-2.0.so.0
#13 0x00002ad78dbb3dda in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#14 0x00002ad78c9fd5f3 in gtk_main () from /usr/lib64/libgtk-x11-2.0.so.0
#15 0x0000000000420807 in main ()

Thread 1 (Thread 47105343716512 (LWP 5027)):
#0 0x00002ad78df0deb5 in waitpid () from /lib/libpthread.so.0
No symbol table info available.
#1 0x00002ad78bda2a07 in gnome_gtk_module_info_get ()
   from /usr/lib64/libgnomeui-2.so.0
No symbol table info available.
#2 <signal handler called>
No symbol table info available.
#3 0x00002ad78e04747b in raise () from /lib/libc.so.6
No symbol table info available.
#4 0x00002ad78e048da0 in abort () from /lib/libc.so.6
No symbol table info available.
#5 0x00002ad78dbb8d70 in g_logv () from /usr/lib64/libglib-2.0.so.0
No symbol table info available.
#6 0x00002ad78dbb8df3 in g_log () from /usr/lib64/libglib-2.0.so.0
No symbol table info available.
#7 0x00002ad78dbb8e76 in g_assert_warning () from /usr/lib64/libglib-2.0.so.0
No symbol table info available.
#8 0x00002ad78ca4c948 in gtk_recent_info_get_short_name ()
   from /usr/lib64/libgtk-x11-2.0.so.0
No symbol table info available.
#9 0x00002ad78ca4c98b in gtk_recent_info_get_display_name ()
   from /usr/lib64/libgtk-x11-2.0.so.0
No symbol table info available.
#10 0x00002ad78ca48c4b in gtk_recent_chooser_menu_new ()
   from /usr/lib64/libgtk-x11-2.0.so.0
No symbol table info available.
#11 0x00002ad78dbb0c84 in g_main_context_dispatch ()
   from /usr/lib64/libglib-2.0.so.0
No symbol table info available.
#12 0x00002ad78dbb3acd in g_main_context_check ()
   from /usr/lib64/libglib-2.0.so.0
No symbol table info available.
#13 0x00002ad78dbb3dda in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
No symbol table info available.
#14 0x00002ad78c9fd5f3 in gtk_main () from /usr/lib64/libgtk-x11-2.0.so.0
No symbol table info available.
#15 0x0000000000420807 in main ()
No symbol table info available.
#0 0x00002ad78df0deb5 in waitpid () from /lib/libpthread.so.0

if i close bug-buddy, gnome-panel reload itself, but a new bug-buddy pops out with the same message..
the problem persists even if i reboot the pc, or try to kill gnome-panel; i also tried to delete /home/myuser/.gnome2/panel2.d (i was trying to delete my gnome-panel settings) but nothing changed.

however, some applets still works (sensor-manager and weather), other doesn't appears (time, shutdown, audio and beryl-manager) and other appears but they are unresponsive (desktop switcher).
i can see both gnome-panels, but i cant use it (unresponsive) and on 2 quicklaunch icon (firefox and thunderbird) i can see only the first (thunderbird).