I had the same problem using the Premier disk I purchased from Costco in February. I even tried deleting it and recently downloaded the software from their website and the problem remained. I am surprised they haven't fixed it yet considering it is now July after the extension.
Luckily I saw that there is a "Show Relevant Forms" icon on the bottom left of the window which lets you enter the information into the Schedule A form. I'm still wondering now if there are other errors in their program I don't know about?
