[Sango]

That sounds off. My guess it maybe could be the toe.

If the alignment is covered under the warranty bring it in to the dealership to have them look at it. There are chances are the dealership doesn't even have the right people who specialize in alignments as well (ie. the folks simply match up the green lights and call it good). There are few dealerships that do however.

I would probably advise you to bring it to alignment shop which specializes in suspension systems get them to align it and see what it comes up with.

How long did you have the vehicle for? Could be a possibility that the car was in alignment the factory and got out of alignment somewhere along the line during the transport of the vehicle (ie. cargo was banged, while the car was being securely held down). If that is the case, the geometry could also be thrown off along with the alignment.