didn't understand anything...I exited evolution and when I looked in the gdb
window there was a segfault. I guess it hapened while exiting because I didn't
notice anything in evolution.

#0  0x407495d9 in g_strdup () from /usr/lib/libglib-1.2.so.0
#1  0x807d030 in mail_do_regenerate_messagelist (list=0x814b2f8, 
    search=0xa8b07319 <Address 0xa8b07319 out of bounds>, changes=0x81ac2a0)
    at message-list.c:2156
#2  0x807c865 in main_folder_changed (o=0x814a9e0, event_data=0x81ac2a0, 
    user_data=0x814b2f8) at message-list.c:1811
#3  0x8077a25 in read_msg (source=0x810fc60, condition=G_IO_IN, userdata=0x0)
    at mail-threads.c:763
#4  0x4073ebf0 in g_io_add_watch () from /usr/lib/libglib-1.2.so.0
#5  0x407402b9 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#6  0x407408c3 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#7  0x40740975 in g_main_iteration () from /usr/lib/libglib-1.2.so.0
#8  0x404e96ba in gtk_main_iteration () from /usr/lib/libgtk-1.2.so.0
#9  0x4018c01a in process_events () at bonobo-control.c:440
#10 0x4018c0d8 in impl_Bonobo_Control_unrealize (servant=0x81768f8, 
    ev=0xbffff7c0) at bonobo-control.c:486
#11 0x400e1f2b in _ORBIT_skel_Bonobo_Control_unrealize (
    _ORBIT_servant=0x81768f8, _ORBIT_recv_buffer=0x810c008, ev=0xbffff7c0, 
    _impl_unrealize=0x4018c0c0 <impl_Bonobo_Control_unrealize>)
    at Bonobo-skels.c:5574
#12 0x40150bf5 in ORBit_POA_handle_request () from /usr/lib/libORBit.so.0
#13 0x40152e82 in CORBA_ORB_run () from /usr/lib/libORBit.so.0
#14 0x401530d1 in CORBA_ORB_run () from /usr/lib/libORBit.so.0
#15 0x4016f8f5 in giop_recv_reply_buffer_use_multiple_2 ()
   from /usr/lib/libIIOP.so.0
#16 0x4016f9a6 in giop_recv_reply_buffer_use_2 () from /usr/lib/libIIOP.so.0
#17 0x8080e92 in Evolution_ShellView_set_message (_obj=0x81a4fc8, 
    message=0x8229178 "Synchronisation de \"/mbox\"", busy=0 '\000', 
    ev=0xbffff94c) at Evolution-stubs.c:1425
#18 0x8078132 in update_active_views () at mail-threads.c:1087
#19 0x80781b2 in ui_set_message (
    message=0x820eb78 "Synchronisation de \"/mbox\"") at mail-threads.c:1117
#20 0x80778f0 in read_msg (source=0x810fc60, condition=G_IO_IN, userdata=0x0)
    at mail-threads.c:719
#21 0x4073ebf0 in g_io_add_watch () from /usr/lib/libglib-1.2.so.0
#22 0x407402b9 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#23 0x407408c3 in g_get_current_time () from /usr/lib/libglib-1.2.so.0
#24 0x40740a5c in g_main_run () from /usr/lib/libglib-1.2.so.0
#25 0x404e9457 in gtk_main () from /usr/lib/libgtk-1.2.so.0
#26 0x400ee099 in bonobo_main () at bonobo-main.c:270
#27 0x8079ec7 in main (argc=1, argv=0xbffffbc4) at main.c:100
#28 0x408aabdc in __libc_start_main () from /lib/libc.so.6