You more than likely got saddled with a 51MB Junction View file, especially if you updated to 2012.20 recently. If you did do that update, there is a 752MB file available on the CNNANT 2012.20 thread in the Maps sub-forum which will cure all your Junction View woes.

For your 1390T, you might want to check to make sure you still have bluetooth capability, since if I'm not mistaken the 1390 has bluetooth.