[GaMedic]

Do you have BAF GPS toggle installed. If so go to settings>today and select it. If you don't have it you can download the cab and install it. Just search "BAF GPS toggle" and you should find the thread for it. Try that and see if you get a lock. Also you can go to settings>connections and see if you have HTC GPS Tool and see if it will make it work. Basically you may need something to "Prime" the GPS. Read the GPS thread to see if it has some solutions for you.