to tell ya the truth, my mouse look was messed up, so i made my own JS mouse look script. it's real easy.

just put this script on your player or whatever you want to move with the camera:

var cam : Transform;

function Update()
{
 transform.rotation.y = -cam.localEulerAngles.y; //this should when your camera rotates left, you're player rotates left also... make sure to set cam as the camera you want to rotate!

 cam.localEulerAngles.y = Input.mousePosition.x; //i'm messing up the axes because .y rotates the camera along the Screen's x axis. 

 cam.localEulerAngles.x = Input.mousePosition.y; //same as above, only switched the axis names.
}

you don't need this on your camera, actually, this won't work if you put it on your camera. and you have to drag your camera from the heirarchy wiindow to your cam slot in the Inspector.

I hope i helped you!

(as always, if you need anything, or you think i left something out, comment.)