A Perry County machine was recalibrated after a complaint that a vote for one presidential candidate was registering for the other, a Department of State spokesman said.
A person operating as "centralpavote" posted a YouTube video -- viewed nearly 600,000 times -- of a machine registering a Romney vote when the Obama box was selected.
The user wrote: "I initially selected Obama but Romney was highlighted. I assumed it was being picky so I deselected Romney and tried Obama again, this time more carefully, and still got Romney. Being a software developer, I immediately went into troubleshoot mode. I first thought the calibration was off and tried selecting Jill Stein to actually highlight Obama. Nope. Jill Stein was selected just fine."
Department of State spokesman Ron Ruman said the agency got a call midmorning about a voting machine highlighting the wrong candidate. (He could not independently confirm which candidate the machine was registering.) But he said the problem has been resolved.
"That machine was recalibrated and returned to service," he said. "It's working fine."
No other reports of uncooperative machines, he said.