Well no one has gotten to this one yet. I'm not entirely (or even remotely) sure how to fix this, but in the 747, CABIN ALTITUDE means the pressure in the flight deck and/or passenger decks has risen to above 10,000 feet. Have you checked to ensure all doors are closed and packs (if the MD-11 has them?) are on climbing above 5,000 feet or so?

Guys, you do realize captain_sanchez dragged up a post that is nearly 2 years old right?

Guys, you do realize captain_sanchez dragged up a post that is nearly 2 years old right?

I didn't. Thanks. I was about to go blasting into the one guy's comment about how he didn't just pick up flight simming three days ago, even though he clearly needs to run the tutorial. Seeing that I tend to be verbose, you saved me a lot of typing. Thanks.