According to The Denver Channel:
Secretary of State Mike Coffman cited security or accuracy problems in the decertified machines.
A number of electronic scanners used to count ballots were also decertified, including a type used by Boulder County.
Coffman said the system had a 1 percent error rate when counting ballots. "So for every 100 ballots we tested, we found there was an error with one of those ballots," Coffman said.
Ohio and Colorado are only the latest states to experience voting machine problems. Rest assured, there are many more voting machine screw-ups and decertifications to come. Folks, this story has hardly begun.