Didn't the Supreme Court already rule on this issue in 2000?
As I recall it a ballot cannot be rejected because of minor errors or ommissions such as a mispelled name, missing birthday, missing SS #, etc... as long as the clear intent of the voter can be determined, and it can be established the the voter complied with the material aspects of the law (Like they are a registered voter in the precinct they are voting in)...
I think this was one of the Issues the Gore-Leiberman lawyers brought before the US Supreem Court and it was one of the few that they won on.
Or maybe it was the Bush side...I can't remember exactly.
Scott