I posted this pic on another thread from my 700BT installed in my 07 Jetta. Every single time on both my 700BT and the 90BT when you go to look up POI with the "Search" button in the bottom left corner. It freezes and/or restarts every time.
Just for grins I tried this....no error message, it works.
Anything else I can test for you?
assuming it was installed properly, I guess you should send that p.o.s. back