The electronic voting system that San Diego County planned to start rolling out in November has been rejected by the Secretary of State's Office.
In a mock election, machines turned off, screens froze and papers jammed.
The voting system has a checkered past. In 2004, hundreds of polling places opened late and voters were turned away when a computer glitch paralyzed the touch screens.
Secretary of State Bruce McPherson said the voting machine failed 10 percent of the time during testing. He notified Ohio-based Diebold Election Systems Inc. on Wednesday that its system was "not suitable."