If nothing is showing, that suggests you haven't checked the 'Show readability statistics' option, under File|Options|Proofing>When correcting spelling & grammar. If you do have the option checked, it's possible the Office installation is faulty, in which case you might try repairing it (via Windows Control Panel > Programs > Programs & Features > Microsoft Office (version) > Change > Repair).

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

I know it's been awhile but my problem persists despite following the advice kindly offered.