This is a message I get from evolution:

Backtrace was generated from '/opt/gnome/bin/evolution'

Using host libthread_db library "/lib/tls/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 1093478080 (LWP 10910)]
[New Thread 1146096560 (LWP 10994)]
[Thread debugging using libthread_db enabled]
[New Thread 1093478080 (LWP 10910)]
[New Thread 1146096560 (LWP 10994)]
[Thread debugging using libthread_db enabled]
[New Thread 1093478080 (LWP 10910)]
[New Thread 1146096560 (LWP 10994)]
[New Thread 1142078384 (LWP 10934)]
[New Thread 1139977136 (LWP 10933)]
[New Thread 1137400752 (LWP 10928)]
[New Thread 1135299504 (LWP 10927)]
[New Thread 1126792112 (LWP 10926)]
[New Thread 1133095856 (LWP 10925)]
[New Thread 1128893360 (LWP 10923)]
[New Thread 1130994608 (LWP 10922)]
[New Thread 1124690864 (LWP 10917)]
[New Thread 1122589616 (LWP 10916)]
[New Thread 1120488368 (LWP 10915)]
[New Thread 1118387120 (LWP 10914)]
0xffffe410 in ?? ()
#0  0xffffe410 in ?? ()
#1  0xbfade9ec in ?? ()
#2  0x00000000 in ?? ()
#3  0xbfade920 in ?? ()
#4  0x40f9fe8b in __waitpid_nocancel () from /lib/tls/libpthread.so.0
#5  0x404d11ca in libgnomeui_segv_handle (signum=-512) at gnome-ui-init.c:741
#6  0x0805fd61 in segv_redirect (sig=11) at main.c:420
#7  <signal handler called>
#8  0x414c8837 in setColors (style=0x867b6f8) at qpixmap.h:271
#9  0x414c4d31 in realize (style=0x867b6f8) at qt_theme_draw.c:1748
#10 0x410d67c1 in g_cclosure_marshal_VOID__VOID (closure=) at gmarshal.c:77
#11 0x410c7a97 in g_type_class_meta_marshal (closure=0x82829d0,
return_value=0x0, n_param_values=0, param_values=0xbfadf090, invocation_hint=0x0, 
    marshal_data=0x0) at gclosure.c:514
#12 0x410c7dab in g_closure_invoke (closure=0x82829d0, return_value=0x0,
n_param_values=0, param_values=0x0, invocation_hint=0x0) at gclosure.c:437
#13 0x410d8af2 in signal_emit_unlocked_R (node=) at gsignal.c:2365
#14 0x410da381 in g_signal_emit_valist (instance=0x867b6f8, signal_id=) at
gsignal.c:2194
#15 0x410da6b2 in g_signal_emit (instance=0x0, signal_id=0, detail=0) at
gsignal.c:2238
#16 0x40d464b1 in gtk_style_realize (style=) at gtkstyle.c:971
#17 0x40d468b7 in gtk_style_attach (style=) at gtkstyle.c:870
#18 0x40df1849 in gtk_widget_set_style_internal (widget=) at gtkwidget.c:4725
#19 0x40df1a1c in reset_rc_styles_recurse (widget=) at gtkwidget.c:4886
#20 0x40df1a6b in gtk_widget_reset_rc_styles (widget=) at gtkwidget.c:4899
#21 0x40d28c46 in gtk_rc_reset_widgets (settings=) at gtkrc.c:1317
#22 0x40d2c697 in gtk_rc_reparse_all_for_settings (settings=) at gtkrc.c:1523
#23 0x40d2c813 in gtk_rc_reparse_all () at gtkrc.c:1547
#24 0x414d50b1 in gdkEventFilter (xevent=0x414c4d10, gevent=0x825e4a8, data=0x0)
at qt_qt_wrapper.cpp:382
#25 0x40ff2548 in gdk_event_apply_filters (xevent=) at gdkevents-x11.c:319
#26 0x40ff4102 in gdk_event_translate (display=) at gdkevents-x11.c:858
#27 0x40ff5847 in _gdk_events_queue (display=0x8083670) at gdkevents-x11.c:2092
#28 0x40ff5c2d in gdk_event_dispatch (source=0x0, callback=0, user_data=0x0) at
gdkevents-x11.c:2152
#29 0x41124e97 in g_main_context_dispatch (context=0x8094808) at gmain.c:1942
#30 0x411275d7 in g_main_context_iterate (context=) at gmain.c:2573
#31 0x411287c7 in g_main_loop_run (loop=) at gmain.c:2777
#32 0x4086f6f0 in bonobo_main () at bonobo-main.c:297
#33 0x0805fb4b in main (argc=1, argv=0xbfadfa94) at main.c:585

Thread 14 (Thread 1118387120 (LWP 10914)):
#0  0xffffe410 in ?? ()
No symbol table info available.
#1  0x42a93a58 in ?? ()
No symbol table info available.
#2  0x00000003 in ?? ()
No symbol table info available.
#3  0x00000000 in ?? ()
No symbol table info available.
#4  0x40f9c720 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/libpthread.so.0
No symbol table info available.
#5  0x4007f136 in e_msgport_wait (mp=0x82c1810) at e-msgport.c:522
	_buffer = {__routine = 0x4007e350 <msgport_cleanlock>, __arg = 0x82c1810,
__canceltype = 1118386632, __prev = 0x0}
	msg = #0  0xffffe410 in ?? ()

Robert Evert,
Do you still experience this issue with newer soft?
Please check the status of your issue.