I can't get a collision to cause the end of my game

I need help getting a collision to cause the end of my game. I have got a java script, which will be put below, and I have given the ‘wall’ a box collider, and rigidbody. I have set it up where the character has a capsule collider and is the trigger, and the ‘wall’ uses the script, and it’s rigidbody is kinematic. I have tried this the other way but it still didn’t work.
The script I’m using. I’m knew to scripting, so sorry if it’s terrible:

function OnTriggerEnter ()
{
Application.LoadLevel (“scene it will load”);
}

Any help will be apreciated. Thanks

try this :

function OnTriggerEnter( other : Collider )
{
    Debug.Log( " Triggered by " + other.gameObject.name );
    Application.LoadLevel ("scene it will load");
}

Then check the console to see what affected the trigger =]