.
Thread 1 (process 3259):
#0  0x006dc8cc in IA__gdk_window_set_opacity (window=0x20656761, opacity=0.5)
    at /build/buildd/gtk+2.0-2.18.2/gdk/x11/gdkwindow-x11.c:5503
	__t = <value optimized out>
	__r = <value optimized out>
	display = <value optimized out>
	cardinal = <value optimized out>
	__PRETTY_FUNCTION__ = "IA__gdk_window_set_opacity"
#1  0x008f94e5 in fadeout_callback (fadeout=0x8979d00) at libgksu.c:322
	current_time = {tv_sec = 1255797856, tv_usec = 381878}
	elapsed = 0
	percent = 0
#2  0x003e50f1 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#3  0x003e6e78 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
No symbol table info available.
#4  0x003ea720 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#5  0x003eab8f in g_main_loop_run () from /lib/libglib-2.0.so.0
No symbol table info available.
#6  0x00b84819 in IA__gtk_dialog_run (dialog=0x8b50880)
    at /build/buildd/gtk+2.0-2.18.2/gtk/gtkdialog.c:1090
	ri = {dialog = 0x0, response_id = -1, loop = 0x8b583f0, destroyed = 0}
	was_modal = 0
	response_handler = 64
	unmap_handler = 65
	destroy_handler = 67
	delete_handler = 66
	__PRETTY_FUNCTION__ = "IA__gtk_dialog_run"
#7  0x008f9954 in report_failed_grab (what=FAILED_GRAB_MOUSE) at libgksu.c:632
	dialog = (GtkWidget *) 0x8b50880
#8  0x008f9c13 in grab_keyboard_and_mouse (dialog=0x893e000) at libgksu.c:683
	status = <value optimized out>
	grab_tries = 17
	lock = 19
	pid = <value optimized out>
	fname = <value optimized out>
#9  0x008fa1cb in su_ask_password (context=0x892c4f0, 
    prompt=0x900790 "Password: ", data=0x0, error=0xbfa5ab58)
    at libgksu.c:1024
	dialog = (GtkWidget *) 0x893e000
	msg = <value optimized out>
	password = <value optimized out>
	tmp = <value optimized out>
	retvalue = <value optimized out>
	lock = 0
	gksu_quark = 681
#10 0x008fb043 in gksu_sudo_fuller (context=0x892c4f0, ask_pass=0, 
    ask_pass_data=0x0, pass_not_needed=0, pass_not_needed_data=0x0, 
    exit_status=0xbfa5ab5f "ÿESò", error=0xbfa5ab58) at libgksu.c:2900
	password = <value optimized out>
	prompt_grab = <value optimized out>
	counter = 1
	cmdline = <value optimized out>
	pid_exited = <value optimized out>
	cmd = (char **) 0xcbc
	buffer = "GNOME_SUDO_PASS", '\0' <repeats 240 times>
	argcount = 0
	i = <value optimized out>
	j = <value optimized out>
	gksu_quark = 681
	xauth = (gchar *) 0x8934068 "/tmp/libgksu-oBtNKH/.Xauthority"
	xauth_env = (
    gchar *) 0xbfa5bdc0 "/var/run/gdm/auth-for-gula-6Qc8Ht/database"
	status = <value optimized out>
	infile = (FILE *) 0x893d4b8
	outfile = (FILE *) 0x893d620
	parent_pipe = {18, 19}
	child_pipe = {20, 21}
#11 0x008fd5c2 in gksu_run_fuller (context=0x892c4f0, ask_pass=0, 
    ask_pass_data=0x0, pass_not_needed=0, pass_not_needed_data=0x0, 
    exit_status=0xbfa5ab5f "ÿESò", error=0xbfa5ab58) at libgksu.c:3149
	gconf_client = (GConfClient *) 0x8928688
	sudo_mode = <value optimized out>
#12 0x0804bc0a in main (argc=10, argv=0xbfa5ac24) at gksu.c:825
	gconf_client = (GConfClient *) 0x8928688
	count = 0
	context = <value optimized out>
	error = (GError *) 0x0
	newargc = 11
	newargv = (gchar **) 0x88d0e90
	exit_status = -1 'ÿ'
	run_mode = 2
	c = <value optimized out>