Does anyone know if Similac has changed the mixture of their Soy Formula? I was told that they changed the packaging, but I seem to be having some trouble with the new formula. My son doesnt seem to be tolerating it as well as the "old style" cans. I checked the ingredients and they are different (different order anyways). I am not sure why they did this but I considering switching to Enfamil Prosobee. Any suggestions?