Tried to folllow the tutorial and hit a few problems.
Selected departure rwy ok and got a list of SIDs (didnt appear previously for me) Selected arrival STAR and saved it. Went to step through the legs and there was only 3 with nothing else! Definately no STARS.
Thought i'd continue anyway and see how i got on. Went through weight/thrust/V etc and all seemed good.
Take off went ok but then couldnt select VNAV. Looked back in the CDU and it says "perf/vnav unavailable". Finally aircraft reached 10000 and started porpoising between about 9000 and 11000 then suddenly just dived to the ground.
Am i missing something here, should i have any patches installed etc.
Any help greatfully accepted as i'm a tad frustrated at the moment

Thanks