I think it’s called “straight-ticket”. You can vote a straight ticket by just picking Democrat or Republican, but if you do that, you have to pick the President separately. A lot of voter organizations who are getting out the vote are taking steps to make sure people know that, and polling workers are often reminding people as well. Sucks, but I think Obama will still win NC.
As for Fla, no shame in being cheated. That was outright election theft. Read “The Best Democracy Money Can Buy” by Greg Palast if you want to know the whole story of how 156,000 net Democrat voters were turned away (in an election decided by a couple hundred votes). Not much you can do when the Governor is the cheater’s brother and the Secretary of State is the cheater’s state campaign chair.