Hi Carol: Is this one of the small ones (about 6-8" long) w/ only one button on the belly, or one of the larger ones, that has a moving head & tail? Either way, sounds to me like there is a button stuck somewhere, like on it's stomach, if you have it resting on it's stomach on the shelf it's on. Try rolling it over onto it's side, & see if that makes it stop. Mine is in the shop right now. It's the larger one (although I do also have a small one). The problem w/ the larger ones is that the gears that move the head & tail are made of cheap plastic, & they slide out of alignment & begin to wear down very quickly. I have someone looking for metal gears to replace the plastic ones w/. I'd unstitched the battery pouch side of it & took the mechanics out, so I could see why the tail wasn't moving at all, & the head wasn't when it was supposed to most of the time. Disassembling the tail gear box showed me the problem w/ the gears being cheap. I could probably fix it myself, but I can't find the metal gears. Lin [Posted in FML 8189]