Jurassic Park episode 2 bug

[blassmeister]

I´m stuck in episode 2 during the conversation between Billy and Oscar at the crates. The topic about "Dr. Sorkin´s past" won´t go away, no matter how many times I ask it. So Billy just keeps asking the same question and there does´t seem to be any way to exit the box. What am I doing wrong?

[Mike]

Does restarting the game help?

[r3fund]

Right click out of the chat menu and you can finally talk about "History"

[blassmeister]

Right-clicking works, thanks...