Last week I was inquiering with QT technical support about backfilling issue and that's what I got back (it took them 1 week). Hope this will, at some point, open the door to Jerry to take QT back under his wings.
"QT is in the beginning of the draw-down process. Too early to have very much info available. A business decision has been made to cease support and maintenance of QT, so we are trying to integrate as many features as we can in to ThinkOrSwim from TD Ameritrade before that happens. When the drawdown is complete, QT will no longer be supported or maintained. In the meantime, we recommend trying out ThinkOrSwim. If you need any assistance with it or a walkthrough, just let us know and we'll see if we can get someone at TD Ameritrade to give you a call. For that, you would need a TD Ameritrade account, so if you have one, let us know the account number or userid (please do NOT send us any info other than that like password), a good phone number, day and time to call, and the timezone you're in."