Ok, so Im doing the quest where you battle Orlando and capture Flammschrein, and Ive gotten stuck on one thing.

When you do the ghost's miniquest, after you kill the "minions, you go back to the garrison, right?

But when I do that, the ghost tells me to choose a portal and suddenly I can't press anything anymore, everything, except for the mouse freezes, so to speak and I have to pre ctrlalt delete to get out of the game.

Does anyone know how to fix this or do it right?