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Thread 1 (Thread 7487):
#0  0x00007f36f71c4a11 in gdk_window_set_opacity ()
   from /usr/lib/libgdk-x11-2.0.so.0
No symbol table info available.
#1  0x00007f36f8097f79 in ?? () from /usr/lib/libgksu2.so.0
No symbol table info available.
#2  0x00007f36f4f308c2 in g_main_context_dispatch ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f36f4f34748 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f36f4f34c55 in g_main_loop_run () from /lib/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f36f74c844b in gtk_dialog_run () from /usr/lib/libgtk-x11-2.0.so.0
No symbol table info available.
#6  0x00007f36f8098311 in report_failed_grab () from /usr/lib/libgksu2.so.0
No symbol table info available.
#7  0x00007f36f80985ad in grab_keyboard_and_mouse ()
   from /usr/lib/libgksu2.so.0
No symbol table info available.
#8  0x00007f36f8098a78 in ?? () from /usr/lib/libgksu2.so.0
No symbol table info available.
#9  0x00007f36f8099722 in gksu_sudo_fuller () from /usr/lib/libgksu2.so.0
No symbol table info available.
#10 0x000000000040453e in ?? ()
No symbol table info available.
#11 0x00007f36f476ec4d in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#12 0x0000000000403069 in ?? ()
No symbol table info available.
#13 0x00007fff93538068 in ?? ()
No symbol table info available.
#14 0x000000000000001c in ?? ()
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#15 0x0000000000000011 in ?? ()
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#16 0x00007fff93539a58 in ?? ()
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#17 0x00007fff93539a66 in ?? ()
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#18 0x00007fff93539a70 in ?? ()
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#19 0x00007fff93539a9f in ?? ()
No symbol table info available.
#20 0x00007fff93539aa2 in ?? ()
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#21 0x00007fff93539ab5 in ?? ()
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#22 0x00007fff93539ac8 in ?? ()
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#23 0x00007fff93539ada in ?? ()
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#24 0x00007fff93539aed in ?? ()
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#25 0x00007fff93539af6 in ?? ()
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#26 0x00007fff93539af9 in ?? ()
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#27 0x00007fff93539b11 in ?? ()
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#28 0x00007fff93539b20 in ?? ()
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#29 0x00007fff93539b49 in ?? ()
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#30 0x00007fff93539b56 in ?? ()
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#31 0x00007fff93539b6c in ?? ()
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#32 0x00007fff93539b82 in ?? ()
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#33 0x0000000000000000 in ?? ()
No symbol table info available.