Is anyone else experiencing problems pulling historical data past september of last year? I've had no problems pulling up to a calendar year of data in the past, but all of a sudden I'm getting errors when trying to pull more than 6 months. The errors I'm getting are either that the data doesn't exist (although I've confirmed it does thru their TWS), or some kind of "invalid step: 1" error. I've tried many different symbols. For example I am unable to pull 8/1/2011 data for AAPL, but changing the date to 9/1/2011 works.