Respawn player

A year of frustration from one problem.
Using Torque Game Engine 1.4.2
My avatar freezes!

My project is a randomly generated 3D maze constructed from a huge library of rooms and spare parts. It works very well most of the time.
But... occasionally my avatar freezes. I run the game with the avatar hidden ( camera only ). When frozen, the keyboard and mouse motion commands no longer work (including jump ). The viewing commands work fine. I can spin around in all directions and look up and down.

I recently hooked up a new keyboard command ( using the "u" key ) as follows:
function Unstick(%val)
{
%position = $global_player.getTransform ( );
%position = vectorAdd ( ".2 .2 .75", %position );
$global_player.setTransform ( %position );
}
When stuck, I press the "u" key and it works as expected, that is the avatar/camera rises and moves over slightly. However it is not subject to gravity. Repeated pressing of the "u" key simply causes the avatar/camera to rise steadily up thru the building and into the sky. I still have full viewing control but no motion or gravity.

I want to delete the player and respawn an active player using the slight position shift as above.
How do I kill my player and then spawn a fresh active player???