[CentOS] auto hide gnome desktop TOP panel - solved

I turned on the auto hide of the TOP panel on gnome desktop.
I does hide but I still see like 2 or 3 pixel lines of the panel???

How can I completely hide the top panel?

I tried change the number of pixels in the panel it always still shows
a couple pixel lines.

I have a dell inspiron 8200 laptop.

THanks, for any suggestions.

Jerry

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Using gconf-editor path /apps/panel/toplevels/top_panel

I found auto_hide_size=6 and change to 0

That seems to have taken care of it.

Jerry