I have a new Nikon remote for my D40. I have used it twice. Once at dusk, and last night practicing (sp?) for fireworks tonight in the backyard. the remote was very intermittent and then didn't seem to work at all. Also, the shooting mode seemed to switch back to single exposure rather the "quick response remote". But even when everything was set right, no luck. So I tried it this morning and it fires everytime. It seems like it doesn't like the dark. Also, is there another receiver besides the one on the front? It does work from behind but I don't see a receiver on the back.