Hello

I have a question
I have a 04 X5 with Nav.
I just started to use it and have a question?
when I try to input a destination it will except the city name okay then when I highlight the Street,, and press the right knob , it does nothing?
it will not allow me to enter a street name. I don't even get the letters to enter a name on the screen?

Not sure if i am doing something wrong or is there a issues with my unit?
the area that i wanted to input is very old area and is on the map
Thank you for your help

Jim