O.K. I did some more testing and I am optimistic.
Took an A319, used RWY 35L at KDEN as my starting point, activated GSX, which recognized where I was and GSX services were available, along with all the terminals and gates.
Took the same aircraft, put it at RWY 25L at KLAX as the starting point, activated GSX and it recognized I was at KLAX and had all the terminals and services available.
I do not know, but could my problem be cured?
Umberto, does this make sense?
Grazie!!