Characters not following orders.

I've been working on my next book for a couple of weeks and I have the plot completely worked out knowing where it should end is sort of comforting on those days when I am staring at a blank page. I try to let the character's personalities take over and lead the story with me just providing a guiding hand, but this time they have taken over totally, apparently I am simply the transcriber for this story. Oh well, I still get to put my name on the cover!!