In "options" on your mainlobby client, "startup", mainlobby content folder (at the bottom of the startup screen) to:
make a note or cut n paste the current path to a text file so you can restore it, if different.
then open 0019_drinks.mls. Provided you havn't altered the scene it should now work as designed.
Dont click your link, click on the display window and the KB should popup, after clicking save it should disappear again leaving the entered word in the display window. Click the window again and the KB should re-appear.