Project 05 - servo not working

When I first turned turned on this project the servo turned a full 180 degrees then stopped moving. Now when I move turn the potentiometer nothing happens until around 150 degrees when the servo starts to chatter, but doesnt move. I have used the built in example code and have the same problem so dont think its an issue with the code.
Any ideas?

You have the lower capacitor between ground and the servo control line. It should be between ground and 5 V.