This module requires Athenian Greek font. If you have not yet installed this freely available font, use the link for "Fonts and Browser Settings" on the Ancient Greek Tutorials home page.
First select a unit or range of units to drill, and the type of drill. Then click START DRILL to begin; thereafter click NEXT ACTION until set is complete or you reset the range. If Greek display is not correct in an OS X Mac browser, then use View:Character Coding to set Western(MacRoman), then View: Reload, and begin the drill again by chosing settings and clicking START DRILL.