[TYPO3] very annoying problem: pagetree duplicated in the backend

[John Kavanagh]

Hello,

 

I have a problem with typo3 where the menu is duplicated in the backend
at the same level as the site (globe icon) in the pagetree. This means
that if I click one of the menus the other menu selects the same thing.
It disappears if I export the tree to a .t3d, delete all the pages &
re-import the .t3d, but then the navigation on the front-end disappears.
When I import the .t3d with "Force ALL UIDs values" ticked the front-end
navigation disappears but the the duplicate menu in the backend does
also!!  

Has anyone had the same problem ?

 

Thanks,

 

John.