diff --git a/sim/simulation.lua b/sim/simulation.lua
index a942b68..ec53c7d 100644
--- a/sim/simulation.lua
+++ b/sim/simulation.lua
@@ -7,7 +7,7 @@ function Simulation.new(sim)
 		num_groupqueue = 0,
 		gatequeue = {},
 		num_gatequeue = 0,
-		groupfxqueue = {},
+		--groupfxqueue = {},
 		current_tick = 0,
 		
 		definitions = {},
@@ -297,7 +297,7 @@ function Simulation.dequeuegroup(sim, group)
 		sim.num_groupqueue = sim.num_groupqueue - 1
 		group.in_queue[0] = 0
 	end
-	sim.groupfxqueue[group] = nil
+	--sim.groupfxqueue[group] = nil
 end
 
 function Simulation.dequeuegate(sim, gate)
@@ -313,9 +313,9 @@ function Simulation.dequeuegate(sim, gate)
 	end
 end
 
-function Simulation.queuegroupfx(sim, group)
-	sim.groupfxqueue[group] = group
-end
+--function Simulation.queuegroupfx(sim, group)
+--	sim.groupfxqueue[group] = group
+--end
 
 function Simulation.queuecallback(sim, gate, ...)
 	sim.callbacks = sim.callbacks or {}