To follow-up from my previous post, the aircraft have mysteriously appeared and both are selectable. That's the good news. however, In trying to work get this plane flying I found two issues that I can't figure out. After the engines are started according to the check list, when I click on the master caution button the light does not go out but the FMC is brought up. I have not been able to turn off the warning light at any time. Second, clicking on the A/P buttons does not do anything. I hear clicking sounds but I can't adjust selected altitude, V/S, speed, heading, etc. Maybe I'm not doing it right but I've tried using left and right mouse buttons and nothing seems to work. So that's the bad news. My main concern is getting the A/P working where I can set desired settings. Any help would be appreciated.