Electronic voting machines are nothing more than computers dedicated to a specific task.  These computers are no better than the people who designed the hardware or those who programmed the software, and are therefore potentially fallible, as is any computer. 

Voters should demand no less than a verifiable result that proves that their vote was properly recorded, including a printed receipt. 

If anyone encounters problems of any kind with these computers, they are strongly encouraged to report them immediately to the appropriate authorities, and also to the following noted watchdog group.

Ask for help immediately before finalizing your votes if there is a problem, or call the hot line to report problems or get assistance.

If voters have problems casting ballots anywhere in the nation, they can call a toll-free Election Protection Coalition hot line set up to report issues: (866) OUR-VOTE, or (866) 687-8683. EFF is a member of the coalition, which includes the People for the American Way Foundation, the National Association for the Advancement of Colored People, and the Lawyers’ Committee for Civil Rights Under Law.

Problems could include hardware that doesn’t properly record or cast ballots, machines that switch votes to other candidates on their electronic summary screens, or ones that reboot or crash as people attempt to vote. “Don’t let concerns about the machines keep you from the polls,” Zimmerman said. “If you have concerns [or problems voting}, the only way they’re going to be fixed is if you let us know about it.”

Other resources:

http://www.verifiedvotingfoundation.org

http://www.pfaw.org