Panel autohide fixes

[Marc Hildebrand]

> I still have a problem, when I log out/log on, the panel sometimes is
> located on the top left corner (which is definitely not the place I
> left it).

I have exactly the same problem, plus:
When I fix the settings via the "set" button in the panel-settings-menu,
the panel completely vanishes.
It still shows up in the "alt-tabbing-window" but won't appear on the
desktop again...