armb writes with a link to a Wired Blog entry about irregularities found in Diebold databases
from the state of Ohio. The election in question here is November 2006, and the corruption of the entries may raise doubts about accurate tabulations. "Vote totals in two separate databases that should have been identical had different totals. Although Diebold explained that this was part of the system design for separate vote tables to get updated at different times during the tabulation process, the team questioned the wisdom of a design that creates non-identical vote totals. Tables in the database contained elements that were missing date and time stamps that would indicate when information was entered. Entries that did have date/time stamps showed a January 1, 1970 date. The database is built from Microsoft's Jet database engine. The engine, according to Microsoft, is vulnerable to corruption when a lot of concurrent activity is happening with the database, such as what occurs on an election night when results are uploaded and various servers are interacting with the database simultaneously."