2000 f450 starting problems, I have to Reset the security system every other day in order to start truck? I have to turn the key to the on position, wait aprox 10 min and turn it off then on to start. It will start after doing this. I need to know what would cause this to happen so often? Problem started aprox 8 months ago. Use to be every 3 to 4 months, now every week a couple of times. Everything else seems to be perfect. I installed a new battery.