Why doesnt turbotax allow downloading of brokerage data when it becomes available?

I have manually downloaded and printed all my brokerage 1099 from the big 3 brokerages:  Vanguard, Fidelity, and Schwab.  But when I try to import electronically, turbotax wont even try and says that it will not be available until some date 1-2 weeks from now, even if it already is available.  Is there any way to override this prohibition?  I dont want to wait 2 more weeks to get started on my taxes...