I have two computers, one is a laptop and the other is a surface tablet. I originally had my mpvi2 set-up on my laptop, however for sake of packaging and ease of use. I would like to use my surface tablet instead. The problem is my tablet wont allow me to use/download tunes to the vehicles. Is there something I'm missing or do I officially have to have the device added to this tablet in order to tune with it? Any answers in the right direction would be much appreciated