Yup. I've had the same issue with mine and I started having the issue when I bought mine brand new last Nov. Mine is quite stable at low speeds but on the freeway, it seems to have more room to roam, so to speak. And it seems to do that more when the tires get into ruts in the road. Sometimes I get the sensation that the car is suddenly moving hard to one direction -- likely "falling" into such ruts or grooves on the road.