All of mine are in the woods at the moment, but I'll pull one of mine on the next check and go through all of my settings and will post them. Mine works great, but I know every brand can have a bad one, or even a glitch.
Did you try to factory reset the cam? A friend of mine accidentally messed up a setting on his wireless and was getting a LOT of pics, like literally all the time! So he reset to factory configuration and that fixed his issues. The only down side though was he never knew what he messed up to begin with.