Maybe a bit off topic, but try to put it where there are no BUGS!! I kept getting pictures of nothing, could'nt figure it out - then last time I was over I happened to be standing by the camera when a wasp landed on the box looking, as they do, for a place to nest- sure enough as he buzzed in front - click. Not sure that's the answer to all of the "blank" pictures but I suspect it's the cause of quite a few. I'm also not sure what I can do about it, but if anyone has a cure please let me know-had over 200 pic's last time I checked and the vast majority were just of the landscape.