Well, Ameritrade told me;
1. They had no shares avalable to short.
2. It 's restricted anyway, so I wouldn't be able to short anyway.
That's a good reason to have multiple brokers, because, I would like to short DDD, but can't. I posted on the DDD board, and someone on there told me it was restricted. That's when I called Ameritrade to confirm.
Just so you know I'm not making this stuff up. I still think Whoever you spoke to on Scottrade was mistaken, but maybe it's different if they have shares available, or maybe, they just don't follow the letter of the law, because they make more money by loaning shares to short. Double commission on the same shares.