In a perfect world we all would and there would never be a data entry problem. They are legitimate reasons people need to cast provisional ballots. They are part of the system. Again, please I am not saying they will change the outcome at all. Bush won hands down. Thank goodness. Maybe that is even more so to have everything valid counted; all it can do is strenght hands.
I understand data entry problems. I suspect that accounts for one percent or less of the provisional ballots. As for technology, I am a big believer in optically scanned paper ballots. Each one is uniquely numbered in sequence, so there is great difficulty in trying to forge them or insert them after the polls close. Each precinct keeps a count of the total votes cast, which must match the number of bllots.
They are inexpensive and require little or nothing in the way of equipment. Therefore a precinct can have or twenty people voting simultaneously at no great expense. There are no long waiting lines.
The ballots are easily and reliably counted. If a counting machine breaks it does not affect the ballot. If the counting machines aren't trusted, the ballots are easily counted by hand.