Well, you could try to reload XFCE.
XFCE stores it's configuration for the running session in
xfconfd. Feel free to back up the files you're going to delete first.
- Shut down the panel first,
- Kill the xfce4 configuration daemon,
- First delete settings for the panel,
rm -rf ~/.config/xfce4/panel
- Clear out the settings for
rm -rf ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-panel.xml
- Restart the panel, run
xfce4-panel. This will respawn
xfconfd automatically. Note if you need or want to restart xfconfd manually know that on my installation it was in
/usr/lib/x86_64-linux-gnu/xfce4/xfconf/xfconfd which was outside of
This clears the running session, regenerates the files, and then it sets it default for future sessions.
Hope this helps!
(Based from here: http://askubuntu.com/questions/224006/resetting-xfce...)