forward/back speed increases infinatley :/

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Amon.old
 #1
Graphics3D 800,600


light = CreateLight()
camera = CreateCamera()

cube = LoadMesh("cube1.3ds")
PositionEntity camera,0,0,EntityZ(cube)-600

Global cubez# = 0

While Not KeyHit(1)

	
	cubex = MouseX()
	cubey = MouseY()
	
	If KeyDown(200) = True
		
		cubez# = cubez# + .2
		
	ElseIf KeyDown(208) = True
	
		cubez# = cubez# - .2
		
	Else cubez# = 0
		
	EndIf
	
	PositionEntity cube,0,0,0
	MoveEntity camera,cubex,cubey,cubez#
	
	UpdateWorld
	RenderWorld
	Flip
	
Wend


When I push up key or down key the speed starts of slow and icreases till its warp drive.

cubez = cubez + .2 should move the cam slowly.

In 2d if you did dudex = dudex + (whatever) you would get a constant speed, not an increase in speed till its going to fast.

How do i fix?

thx :)

I like toast