A glitch in Black Plague

I really like this game series. as always Frictional games does a great job!
Ive played the first chapter Overture without any problems and was excited to reach Black Plague yesterday.
However it seems that I cannot get past a certain part in BP and it has to do with this version because the other versions seem to work fine.
Its the part when you are on the computer for the first time and you have to open a door that will only open by a password on the computer itself.
Having a Macbook Pro I have tried using the top row keys and the numbers just dont show up on the little black box. Ive tried to enter the code and hit enter but it denies access and I cannot progress further into the game without going in this room.
Its a shame I cannot finish Black Plague and I really hope someone figures out this problem soon.

Chappy-chan about Penumbra: Collection