I'm at that point where LeChuck pulls Guybrush under his ship. I see the keys, and I want to get them, but there's no cursor or a way to stop, as far as I can see. And after I'm on board again, I can't make LeChuck make me get under the ship again. What am I doing wrong? Is there a way to get the keys if you missed them the first time? I tried to slide down the sail from the crow's nest again, but the sail doesn't seem to be useable after the first time anymore.
I have a safegame from right before Guybrush gets keelhauled though.