Vista - Welcome Center - can't get rid of it (checkbox is missing!)

Dear all,

I a, used to using Windows Vista, but with a new computer purchased this
morning, there is no "start-up" check-box at the bottom left of the pane to
deselect! It's driving all the new users mad!

This seems an odd bug/corruption but everything else is working smoothly so
i'll be dammed if i have to re-install windows just to get a check-box and
remove this Welcome Centre every time somebody logs in!

Any advice / registry change needed would be extremely gratefully received,





--
William Dowell.