Ok guys, I woke up one morning to warm up the truck. Dead silence, completely dead battery. My wife assumed my daughter left the dome light on so I jump start the truck. Finally the truck is up and running but when i go to drive it, it dies again. Crank it back up and it starts right up. Try to put it in drive, moves a few feet then dies again. Can some one explain to me what is happening here please. It cranks up but it just won't drive. Alternator maybe?