Logical testing not working -- what am I overlooking?

I'm developing a side-scroller. When the player enters a trigger area, she gets attacked by a snail. The snail's not supposed to move until she enters the trigger area. So the snail has a dynamic field called canMove, which is modified by the player entering and exiting the trigger area:

function HKVTrigger::onEnter(%this, %object)
{
...
	if ( %this == snailTrigger.getID()
			&& %object == player.getID() ) {
		snail.canMove = True;
...
}

function HKVTrigger::onLeave(%this, %object)
{
...
	if ( %this == snailTrigger.getID()
			&& %object == player.getID() ) {
		snail.canMove = False;
...
}

The MoveToward behavior uses canMove to decide whether or not the snail is allowed to move. The problem is that my logical test doesn't work. I tried it four different ways, as you can tell from the commented lines. None of them worked.

function MoveTowardBehavior::onUpdate(%this)
{
...
   //if ( %this.owner.canMove == true ) {
   //if ( snail.canMove == true ) {
   // if ( snail.canMove == 1 ) {
   if ( snail.canMove ) {
	   echo("Blah");
   	%this.owner.moveTo(%this.object.getPositionX(), %this.owner.getPositionY(), %this.speed);
   }
...
}

(This is the MoveToward behavior posted on TDN. Before I inserted the logical test, the %this.owner.moveTo command worked fine, and the snail was chasing the player all over the place, so the problem is not with the %this.owner.moveTo command.

I tried the logical tests from the console, with the game running. When the player was outside the trigger area, here's what I got:

==>echo(snail.canMove);
false
==>echo(snail.canMove == true);
0
==>echo(!snail.canMove);
1
==>echo(snail.canMove == "true");
0
==>echo(snail.canMove == "false");
1

When the player was inside the trigger area, here's what I got:

==>echo(snail.canMove);
True
==>echo(snail.canMove == true);
0
==>echo(!snail.canMove);
1
==>echo(snail.canMove == "true");
0
==>echo(snail.canMove == "false");
1

The capitalization difference between True/true doesn't make any difference.

I tried this one, just for grins:

==>echo(snail.canMove);
True
==>echo(snail.canMove+2);
2

So am I doing something wrong? Or is "True" no longer a logical 1?