Did someone get a message that said, Sells only, contact broker for buys??
Scottrade is extremely conservative. Numerous times when the volume or price fluctuation has been extremely volatile, they have flashed this message at me. It is their way of controlling the trades, theoretically to maintain order.
All I know its that it really screws up some great trading opps. It will be lifted within a day or two, letting you miss all the opportunity to make some serious money fast.
I do use scottrade, and was able to purchase twice at 24.67, 24.47 early on, did not have restrictions at that time. (They should have though, as I prefer to lose money rather than make it.) ;)