Main Camera won't rotate left or right

I have a main camera that has a character controller and a first person controller script on it. I am able to move with the arrow keys and look up and down. I am unable to look to the left or the right. Also, my mouse look properties have the X and Y sensitivity set to 2. Lastly, I got the controller and script from Asset->Import Package->Characters. Any help to why I can't rotate is appreciated. Thanks!