No memory on climate control system
 

I have a 2002 Explorer (my wife's car), Eddie Bauer Edition and have noticed that the climate control system will reset itself back to 75 degrees every time I turn the vehicle off. I might be losing my mind but I could swear that it use to maintain the temperature setting. I also have noticed that I have to select the External Temperature button every time I get in the vehicle.

I've looked at the owners manual, but haven't been able to find anything. Is there a fuse for this?

Thanks for your help,
Clay