sub tick {
   # Run every 1000 milliseconds.
   if ($toggle_scan_v eq 0) {return};       # Break out of this tick loop
   
   # Do something
   
   $kount++;
   print "$kount ";
   $mw->after(1000, \&tick);           # Suggest loop here
   print "No Error; we should get here often. \n";
}