OnMouseEnter not working despite collider on GameObject

This is a common problem and there doesn’t seem to be a non-workaround answer:

I have a GameObject (nota GUIText or GUI anything, just a Cube with a rigidbody), it is a collider (isTrigger is off/deselected) it is also a rigidbody (isKinimatic is on/selected). I’ve got a script on the object (that definitely IS attached, and does NOT belong to the IgnoreRayCast layer, I double checked) with these functions defined:

public void onMouseEnter() { 
    print("onMouseEnter"); 
}
public void onMouseExit() { 
    print("onMouseExit"); 
}

No matter if I turn isTrigger on/off or isKinimatic on/off the onMouseEnter/Exit functions do not register

I also run this code in another script:

RaycastHit hitInfo;
if( Physics.Raycast( Camera.main.ScreenPointToRay( Input.mousePosition ), out hitInfo ) {
    Debug.Log( "mouse is over object " + hitInfo.collider.name );
}

and it DOES register that the ray hits the object (regardless of isTrigger and isKinimatic being on or off). But then why won’t the onMouseEnter/Exit functions work? They are basically the same thing, right? Also, I have onMouseDrag() implemented in the same script as onMouseEnter/Exit and that works perfectly!

What could I be doing wrong, I’ve tried (what I think) is everything(!)

p.s: I know I can use the raycast to get hold of what object is being selected but this is a workaround. I’d rather avoid workarounds since, according to Unity, onMouseEnter/Exit should work.
(http://docs.unity3d.com/Documentation/ScriptReference/MonoBehaviour.OnMouseEnter.html).

You need to capitalize O in OnMouseEnter. So simply, replace onMouseEnter with OnMouseEnter. Hope this helps

huh, i just stumbled on your guys post. ive been using unity for quite awhile. I forgot about this function cause i thought it only worked with GUI buttons. i would have assumed that not capitolizing would give a compiler error. since then ive replaced the need with raycasting from camera to mouse.
if i find out this simple answer was my problem im coming back to give you guys both a thumbs up for this post!!!