Help with a simple question (function update() seems to be only happening once)

Okay, so I'm new to programming with unity, and I thought (honestly still think) that the "function Update()" ran every frame?
I've got the following code:

function Update () {
print("wow");
if(Input.GetButtonDown("Fire1")){
transform.position = new Vector3(1,1,1);
print("hey2");
}if(Input.GetButtonDown("Fire2")){
transform.position = new Vector3(-1,-1,-1);
print("hey");
}
}

and it only prints "wow" once to the console and doesn't move the object. Why not?

EDIT: Actually I just found out that it gave me an print error 727 times, so I guess it keeps on doing it. The error was:
"wow
UnityEngine.MonoBehaviourrint(Object)
Movement:Update() (at Assets/Movement.js:8)"

How do I fix it? I'm guessing you shouldn't actually use print()? Still, the question of why it is not moving is most important

EDIT 2: I've isolated the problem to being my if statement. If I remove it, the block will move, but even if I say
if(Input.anyKeyDown)
and press all over my keyboard it doesn't move.

 

Are you sure its an error? print() works fine, and what you have posted isnt an error, its just what it looks like when you print something.

And to your 'problem': GetButtonDown only fires on the single frame that you click, so I'd say thats 'working as intended'.
And when you press the button, it will move the object immediatly to the position, if you alternate between Fire and Fire2 you should see it switching between the 2 posisiotns

 

Oh and by the way, you should use the code tag to format your script. It will help people to read your script and find out the issues.
Here is the link : http://forum.unity3d.com/threads/143875-Using-code-tags-properly