Re-checked bulbs and indeed the front light doesn't work. That's the last time I rely on my neighbor's eyesight (all bulbs supposedly worked according to him!) Strange though, the lights don't blink quite as fast now... go figure. Oh well, sometimes we get lucky and it's the simplest thing that causes the problem. Will have get some replacement bulbs, hopefully that's all it is. I guess I'm conditioned to worse case scenario! HaHa