Hi guys,

I'm having some problems with this plane in fsx.
When going above a certain altitude the cabin altitude light goes on and the horn starts beeping. I have no idea what I'm doing wrong.

The mode select is on auto 1, and the auto rate is on the little gray arrow.

Also I'm having problems with the FMS. I manage to fill in my route and take off. The plane follows the route very nicely, but after a while somehow the autopilot appears to disconnect from the FMS and the plane just starts turning. I tried disengaging the auto pilot and reengaging it but nothing seems to work. LNAV and VNAV are on.