CORRECTION: Problem of lost *workspaces*

Doug wrote:
> I usually run 6 desktops in Gnome under 2008.1, but have somehow
> managed to lose all except one; and I can't find any way of re-setting
> 'multiple desktops' in MCC.
> How do I do this?
>
> (4 under KDE are still present)
>
> Doug
>
Sorry, should have said workspaces.

The problem is somewhat worse than this.
If I right-click on the title bar of a window all the 6 workspaces are
listed and I can send it to workspace 6, for example.
But Gnome-panel shows only 1 workspace, so it's disappeared
irretrievably. Nothing on any other workspace is retrievable.

Doug