Updated at 12:35 p.m., Oct. 26, 2018: To include additional information about counties that use paper ballots.

AUSTIN — Some Texas voters have encountered glitches with voting machines while trying to cast their ballot.

On Tuesday, Keith Ingram, state director of elections, published a notice to address issues voters were having after casting straight-ticket ballots.

“We have heard from a number of people voting on Hart eSlate machines that when they voted straight ticket, it appeared to them that the machine had changed one or more of their selections to a candidate from a different party,” Ingram wrote.

Dallas County doesn't use these machines, but according to the secretary of state, Tarrant County has 1,289 Hart eSlate machines and they're in 81 other counties — including more than 20,000 in Travis and more than 8,100 in Harris.

The machine uses a keyboard with "previous," "next," "help," "enter" and a "cast ballot" button, along with a spinning wheel for scrolling through options.

Ingram said the problem can happen when a voter pushes the keyboard before the page has fully loaded. He said the voter needs to be careful to push only one button at a time and not push “enter” until the page is complete.

“As a reminder, voters should always carefully check their review screen before casting their ballots. If a voter has any problems, they should notify a poll worker immediately so the issues can be addressed and reported.” he wrote.

George Ivanonskis, a Dallas resident, told The Dallas Morning News he voted Tuesday morning at the El Centro College campus on Hampton Road and had problems using a touch screen voting machine, the ES&S iVotronic.

“I pushed the selection to vote Republican and it changed my selection for the candidate above from Republican to Democrat,” he said. “I unchecked it and it kept switching back. The same thing happened on another page.”

Ivanonskis said after revisiting the selections several times, he was able to verify he had selected all of the candidates he wanted and cast his ballot. He said he did not report the problem.

Election Systems & Software, the company that makes the ES&S iVotronic, said it checked with the El Centro polling location and did not hear of any issues with its equipment.

“We’ll continue our close work with elections officials in the event there are any reported issues,” a ES&S spokeswoman said in a email Wednesday.

Dallas County elections administrator Toni Pippins-Poole said her office found that some of the voting machines were not fully connected to a power source, so they had a bad connection.

“Once it was determined they had a bad connection and the machines were charged properly, they were working perfectly,” she said.

What machines are used in Texas elections?

Texas uses seven voting machines from three vendors, depending on the county in which you vote.

Dallas, Rockwall and Ellis counties use machines from ES&S, a company based in Omaha, Neb.

According to the secretary of state, Dallas County has 1,250 touch screen voting machines and 1,002 machines to count paper and mail-in ballots.

Tarrant and Denton counties use machines from Austin-based Hart Intercivic– Denton only uses a Hart machine to scan paper ballots, the only method of voting in that county. The Hart voting machines used in Tarrant have buttons and a spinning wheel.

Collin County uses machines from Denver-based Dominion Voting Systems.

The majority of Texas counties also have machines to scan paper ballots.

On the secretary of state website, voters can find out which machine their county uses and see examples of what ballots look like on different machines. They can also use an interactive online machine to practice casting their ballot.

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