Actually I've looked into this and the reason is simple:
The WebPreferences page isn't displayed in the Navigation panel. If
you delete Sandbox.WebPreferences the sandbox space will go away in
the Navigation panel.
-Vincent
On May 16, 2007, at 2:09 PM, Vincent Massol wrote:
 On May 8, 2007, at 5:09 PM, thegios wrote:
 I have installled xwiki and importde their default tables.
 I have been trying for hours to delte the sandbox space: I can
 delete any
 other space, but not sandbox, by deleting all pages of the space. 
 I think there's a bug somewhere as I have seen the same behavior on
 
xwiki.org. The Sandbox name appears in the Navigation panel (with a
 question mark showing the home page doesn't exist) even though
 there are no pages in the sandbox space.
 -Vincent
  Please help
 Thanks 
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