Inheritance

I'm having inheritance problems, heres an example that hopefully is indicative of my problems.

I have a type GameObject:

Type GameObject Abstract


	Field ID
	Field dead
	
	
	Method update(deltaT#) Abstract
	
	
	Method setInput(inputData:TList) Abstract
	

	Method getOutput:TList() Abstract
	
	
	Method draw() Abstract
	
	
End Type

And I have a projectile which extends it:

Type Projectile Extends GameObject
	
	
	Method update(deltaT:Float)
	
		Print "updating"

	End Method
	
	
	Method setInput(inputData:TList)
	End Method
	

	Method getOutput:TList()
	End Method
	
	
	
	Method draw()
		print "drawing"
	End Method
	
	
	Function create:projectile(info:projectileInfo, firerID, targetBase, targetOther, x#, y#, rot#, vx#=0, vy#=0, vrot#=0)
		
	End Function
	
End Type

I have a bunch of projectiles in a list, and I run through the list calling ".update()" on them and I don't get any print out. Anyone know what is wrong, and have any sage tips on how inheritance in bmax might be a bit unusual?