Raycast not detecting anything if MainCamera's X rotation is > 41.5

I am using a raycast script to detect rocks/trees in front of my character so I can chop them, etc, but if I look down (so that X rotation of the main camera is more than 41.5) the raycast will detect absolutely nothing. What is causing this error? I am use the exact same script as I used in my Unity 4 version of the game, and I didn't have this problem back then!

This is the script I am using, and yes I know, sound management in the same script. I am kind of a beginner, and I will improve my scripts when I've got basic gameplay features in the game!

 #pragma strict
 
 var rayLength : int = 10;
 var soundWoodChop1 : AudioClip;
 var soundWoodChop2 : AudioClip;
 var soundWoodChop3 : AudioClip;
 var soundWoodChop4 : AudioClip;
 var soundRockPick1 : AudioClip;
 var soundRockPick2 : AudioClip;
 var soundRockPick3 : AudioClip;
 var soundRockPick4 : AudioClip;
 
 var hasAxe : boolean = false;
 var hasPick : boolean = false;
 var canSwing : boolean = false;
 
 private var randomNumber : int = 0;
 private var animController : animationController;
 
 var tree : GameObject;
 var rock : GameObject;
 
 function Start()
 {
     animController = GameObject.Find("gameManager").GetComponent(animationController);
     hasAxe = true;
     hasPick = false;
     canSwing = true;
 }
 
 function Update()
 {
         var forward : Vector3 = transform.TransformDirection(Vector3.forward) * 10;
         Debug.DrawRay (transform.position, forward, Color.green);
     
     if (animController.canSwing)
     {
         canSwing = true;
     }
     
     else
     {
         canSwing = false;
     }
     
     if (Input.GetKeyDown(KeyCode.F))
     {
         hasAxe = true;
         hasPick = false;
     }
     
     else if (Input.GetKeyDown(KeyCode.G))
     {
         hasPick = true;
         hasAxe = false;
     }
     
     var hit : RaycastHit;
     var fwd = transform.TransformDirection(Vector3.forward);
     
     if (Physics.Raycast(transform.position, fwd, hit, rayLength))
     {    
         if (hit.collider.gameObject.tag == "Tree" && hasAxe)
         {
             tree = (hit.collider.gameObject);
             animController = GameObject.Find("gameManager").GetComponent(animationController);
             
             if (Input.GetButtonDown("Fire1") && canSwing)
             {
                 canSwing = false;
                 playWoodChopSound();
                 tree.GetComponent(TreeController).treeHealth -= 1;
             }
         }
         
         else if (hit.collider.gameObject.tag == "Rock" && hasPick)
         {
             Debug.Log("you are looking at a rock");
             rock = (hit.collider.gameObject);
             animController = GameObject.Find("gameManager").GetComponent(animationController);
             
             if (Input.GetButtonDown("Fire1") && canSwing)
             {
                 canSwing = false;
                 playRockPickSound();
                 rock.GetComponent(rockController).rockHealth -=1;
             }
         }
     }    
 }
 
 function playRockPickSound()
 {
     randomNumber = Random.Range(1,5);
     
     if (randomNumber == 1)
     {
         GetComponent.<AudioSource>().PlayOneShot(soundRockPick1);
     }
     
     if (randomNumber == 2)
     {
         GetComponent.<AudioSource>().PlayOneShot(soundRockPick2);
     }
 
     if (randomNumber == 3)
     {
         GetComponent.<AudioSource>().PlayOneShot(soundRockPick3);
     }
     
     if (randomNumber == 4)
     {
         GetComponent.<AudioSource>().PlayOneShot(soundRockPick4);
     }
 }
 
 function playWoodChopSound()
 {
     randomNumber = Random.Range(1, 4);
     
     if (randomNumber == 1)
     {
         GetComponent.<AudioSource>().PlayOneShot(soundWoodChop1);
     }
     
     else if (randomNumber == 2)
     {
         GetComponent.<AudioSource>().PlayOneShot(soundWoodChop2);
     }
     
     else if (randomNumber == 3)
     {
         GetComponent.<AudioSource>().PlayOneShot(soundWoodChop3);
     }
     
     else if (randomNumber == 4)
     {
         GetComponent.<AudioSource>().PlayOneShot(soundWoodChop4);
     }
 }    
 
 function Wait()
 {
     yield WaitForSeconds(0.2);
 }