Magical Mirrors!

I know this isn't a very high demand question, and it doesn't matter a whole lot to the performance of my Jeep. But, I do have an interesting question regarding my outside rearview mirrors.

I have a 98 Grand, and it has those memory mirrors where you push a button on your key fob, and it adjust the mirrors to the preset memory.

Well, I have noticed several times, when I get into my Jeep, that I have to push the preset number 1 (several times) to make the mirrors return to the correct spot. I don't think anyone is playing a trick on me, but no one else uses my vehicle, and so the mirrors should be in the same spot. Obviously I can just adjust the mirrors by using the control for the mirrors, but this does get annoying after having to readjust them every time that I get in.

By the way, the mirrors are always tilted in a downward direction from the last time that I left them.

I didn't know if anyone knew of a common problem that does this, or if I'm just losing it. Maybe I am just growing taller, and don't realize it. That would put the mirrors in a downward direction

Thanks!