-- commonly used text objects
  HUD_font = nil
  HUD_text_cache = {}  -- fixed font, never recomputed
  Text_cache = {}  -- recompute when default font changes

  live.send_run_time_error_to_driver(stack_trace)

  live.send_run_time_error_to_driver(stack_trace)

  Error_count = Error_count+1
  if Error_count > 1 then
    Error_message = Error_message..('\n\nThis is error #%d in this session; things will probably not improve in this session. Please copy the message and send it to me: ak@akkartik.com.'):format(Error_count)