iflywithsims is 100% correct.
Be careful of the schools that do not know - can only effect you not the school for entrance to the US later!
The INS makes it very difficult for schools as they make it the schools responsibility to know that there are changes. THis is hard for the school as the web site does not always get updated with the new info until after the change. Looks like it has all levelled off for a while now.