Ive been like everyone else trying band ades and it did not work. I could almost never get a lock standing still in either the house or in the open outside. I thought I will give google nav a try on the way home form work. Put my Captivate in the universal car holder in my car on the dash and opened the app. At first it was searching for a signal then after I left the lot I got a lock (under 30 seconds). Drove home (11 miles taking different roads) monitoring the gps the whole way. Dead nuts accurate with the correct street names and never lost a signal. Ill try turn by turn tomarrow to see if thats works. I was going to try it today but every time I said my address it came up wrong and I didnt feel like manually putting my address in. When I got home, I plugged the phone in because it was dead from watching baseball on Sling at work. After I plugged the phone in, I tried Google maps and Google nav and I got a lock in 10 seconds. I might be jumping the gun here, but maybe the gps in the Captivate was meant to be used while moving.