Black Box Voting finished their analysis of the 2004 elections in Palm Beach which used Sequoia voting machines:
Another disturbing find was several dozen voting machines with votes for the Nov. 2, 2004 election cast on dates like Oct. 16, 15, 19, 13, 25, 28 2004 and one tape dated in 2010. These machines did not contain any votes date-stamped on Nov. 2, 2004.
Dozens of voting machines were turned off during the middle of the election while the polls were open. Machine # 6359 in precinct 1036 was powered down 128 times during the election.
Then there’s the question of why do Diebold’s Touch-Screen Voting Machines Have Built-In Wireless Infrared Data Transfer Ports?