if State.screen_bottom1.line == nil then
    -- text box is too tiny; we didn't print anything
    State.screen_bottom1 = {line=State.screen_top1.line, pos=State.screen_top1.pos}
  end

  if State.screen_bottom1.line == nil then
    -- text box is too tiny; we didn't print anything
    State.screen_bottom1 = {line=State.screen_top1.line, pos=State.screen_top1.pos}
  end