Yes,I've seen that report on a website. I understand they've had quite a lot of trouble with "Old Sparky" in Fla. recently which prompted the state legislature to follow the example of many others and introduce lethal injection.
Saw one report (Alabama, I think) where on the first try a warden said they'd got the cables to the chair wired wrong back to the control gear.
One connection to head, one to ankle: Must take a lot of practice to be able to get that wrong!