I just bought a Moultrie M-60 game camera and I am having some problems with it. It does not seem to detect movement any farther than about 15 feet and it very rarely flashes at nighttime. I originally had a hodgepodge of used batteries in it so I put in a brand new set of Duracells as recommended by Moultrie when I called them. The new batteries did not help.Anybody have any ideas what may be the problem. Any help would be appreciated.