Thanks for the question! My name is Dan.
Since you've already tried resetting your 1300, the next thing we should try is a master reset. I'd be happy to walk you through it. Be aware, though, the master reset will erase all your favorite places. If you want to back them up first, click here.
Once you're ready to reset your 1300, follow these steps:
1. Start with your 1300 turned off and disconnected from power.
2. Touch and hold the lower right corner of the screen with your finger or the eraser end of a pencil.
3. With the corner being held, press and release the power button. Don't let go of the corner.
4. When the 1300 powers on, you should see a message asking if you want to erase all user data. Now you can let go of the corner... then touch "yes."
Place your 1300 outside with its back side facing the sky. Leave it alone for 20 minutes so it can reacquire satellites.
Let me know how it goes!