Virginia Matheney and Calvin Thomas said touch-screen machines in the county clerk's office in Ripley kept switching their votes from Democratic to Republican candidates.
When she tried to vote for candidates running for two open seats on the Supreme Court, the electronic machine canceled her second vote twice.
"When I pushed Obama, it jumped to McCain. When I went down to governor's office and punched [Gov. Joe] Manchin, it went to the other dude. When I went to Karen Facemyer [the incumbent Republican state senator], I pushed the Democrat, but it jumped again.