From AP via Wired News:
JACKSONVILLE, North Carolina — More than 4,500 votes have been lost in one North Carolina county because officials believed a computer that stored ballots electronically could hold more data than it did. Scattered other problems may change results in races around the state.
Local officials said UniLect, the maker of the county’s electronic voting system, told them that each storage unit could handle 10,500 votes, but the limit was actually 3,005 votes.