Lost your display???
Sometimes they fall out and slide under the front seat...
...sorry couldn't help that
I am assuming you've tried pushing the menu button on the off chance that she turned it off before she turned off the car the last time and the car is just remmebering that seeting from the last time she drove it? I am not being condescending or anything...just something I might do...
I'd say roll on by the dealer and let 'em deal with it. Even if it was a fuse, there is the question of why did the fuse blow...
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Our Car: '14 X3 35i, Premium, Cold Weather, Nav, all the cameras, Deep Sea Blue over Black Nevada
RIP 16 Feb 13 - '05 X3 3.0i, Flamenco Red over Beige leather