2005 F150 Lariat

Dead battery (old)
Alarm sounded (finally figured out how to shut it off)
Bought and installed new battery
Can't start truck.

Cheezit's suggestion of key "on" disconnect and reconnect battery then "start" worked to start the engine.

Ran truck approx. 10 miles. Shut it off. Truck will not re-start!
Tried this twice, truck still will not re-start.

Each time we want to start the truck, we have to go through Cheezit's suggestion of disconnecting the battery.

Help!

If you have any ideas we would love to hear them.

Lisa