Maybe you have the camera to high up in the tree. You said it wont take pictures of the deer but will of you when you walk by it. How high in the tree is it? Have you tried moving it down at all? I had a similar problem with mine and just moved it down a foot on the tree and got some great pictures, and if they were in front of it, it was going to take there picture. Just try moving in down a little bit and see if that helps.