On a normal installation of Word 2007, when you hover with the mouse over a footnote reference mark, a tooltip appears containing the text of the footnote.
Lately, this has stopped happening on my mom's computer. It used to work, it works fine on other computers.
The "Show Document Tooltips on Hover" checkbox in options is checked, and the mouse cursor does change (to an I-beam with a tiny note) when you hover over the reference mark, the but the tooltip itself is nowhere to be seen.