I just received an order for my mother. A Protege full kit w/ 901 adapter. When I got it the 901 atty would not screw on to the adapter. The threads on the adapter are too big. What atty fits that adapter? Or are the threads just made wrong? I want to cry...My 71yr old mom is flying home Saturday. I could kick myself in the .... for not ordering this sooner for when she arrived.