Take a look at this list of votes for Franklin County, Ohio

Go ahead and scroll down to page 23 and look at the results for "GAHANNA 1." Row B, 4258 votes for Bush, 260 votes for Kerry. Total votes in the precinct, 638.

I don't know what it means that it's "unofficial," but that really doesn't look good. For better or worse though that's probably just a software malfunction of some kind. I expect that any actual attempt to subvert the vote wouldn't be so easy to catch.