The vote counting was marred in several places by computer glitches. The most serious appears to be in Ohio, which provided Bush with his decisive margin. Election officials in Franklin County, in the Columbus area, said yesterday that a computer error gave Bush 3,893 extra votes in one precinct. Bush actually received 365 votes in the precinct out of 638 votes cast. It was not clear whether Ohio experienced any other problems with electronic ballots. About 30 percent of the voters in the state voted electronically. In one North Carolina county, more than 4,500 votes were lost because officials misjudged the amount of data that could be stored electronically by a computer.