Jerry, Try this. Search -> Individuals -> Vital Statistics. In the vitals Search Options find Living. Search Code put U and then replace the list with those found. Hit Search. When the list comes up hit Esc. Now click Group (twice) and a screen will come up telling you how many are in the Grouping Table.
Now back to the Ind screen and click on View -> Individual List -> Design Set order to Surname + Given set Contents to Grouping, the OK out.
Now click F2 and you will have a listing of persons with a U living code.