Created attachment 2944 
screenshot from the panel with standard configs

hi,

(excuse my bad english)
after an update debian/testing i have window borders at my xfce4-panel.
i googled after that, but i don'f find usable threads.

the panel has window borders like thunar.
i use the xfwm window manager.

i installed the xfce4-panel and a lot of other libs and thinks completely new...
i erased my xfce config directory in my home directory...
...but the window borders at the panel is sill there.

even as i created a new user the borders where still there.

when is start the panel from a command line i get the gtk messsage:

(xfce4-panel:4585): GLib-GObject-WARNING **: IA__g_object_set_valist: construct property "type" for object `XfcePanelWindow' can't be set after construction


i hope some of you guys can make something witk this massage.
i have no good experiance with

from debug i get this:

***: gdb xfce4-panel
GNU gdb (GDB) 7.0.1-debian
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/xfce4-panel...Reading symbols from /usr/lib/debug/usr/bin/xfce4-panel...done.
(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/xfce4-panel 
[Thread debugging using libthread_db enabled]

(xfce4-panel:4775): GLib-GObject-WARNING **: IA__g_object_set_valist: construct property "type" for object `XfcePanelWindow' can't be set after construction