diff --git a/build.xml b/build.xml
index cd34e431..ede66d44 100644
--- a/build.xml
+++ b/build.xml
@@ -160,11 +160,11 @@
 	<target name="compile" depends="setup">
 
 		<!-- Recompile -->
-		<exec dir="${mcp.dir}" executable="cmd" osfamily="windows">
+		<exec dir="${mcp.dir}" executable="cmd" osfamily="windows" failonerror="true">
 			<arg line="/c recompile.bat"/>
 		</exec>
 
-		<exec dir="${mcp.dir}" executable="sh" osfamily="unix">
+		<exec dir="${mcp.dir}" executable="sh" osfamily="unix" failonerror="true">
 			<arg value="recompile.sh" />
 		</exec>
 
diff --git a/common/buildcraft/transport/ItemGate.java b/common/buildcraft/transport/ItemGate.java
index 87ab8fa6..d4160b6b 100644
--- a/common/buildcraft/transport/ItemGate.java
+++ b/common/buildcraft/transport/ItemGate.java
@@ -56,6 +56,7 @@ public class ItemGate extends ItemBuildCraft {
 		return (new StringBuilder()).append(super.getItemName()).append(".").append(itemstack.getItemDamage()).toString();
 	}
 
+	@SuppressWarnings("unchecked")
 	@Override
 	@SideOnly(Side.CLIENT)
 	public void getSubItems(int par1, CreativeTabs par2CreativeTabs, List itemList) {
diff --git a/common/buildcraft/transport/gui/ContainerGateInterface.java b/common/buildcraft/transport/gui/ContainerGateInterface.java
index 6f5603fe..97ebed6c 100644
--- a/common/buildcraft/transport/gui/ContainerGateInterface.java
+++ b/common/buildcraft/transport/gui/ContainerGateInterface.java
@@ -12,6 +12,13 @@ package buildcraft.transport.gui;
 import java.util.Iterator;
 import java.util.LinkedList;
 
+import net.minecraft.src.Block;
+import net.minecraft.src.EntityPlayer;
+import net.minecraft.src.ICrafting;
+import net.minecraft.src.IInventory;
+import net.minecraft.src.ItemStack;
+import net.minecraft.src.Slot;
+import net.minecraft.src.TileEntity;
 import net.minecraftforge.common.ForgeDirection;
 import buildcraft.api.core.Position;
 import buildcraft.api.gates.ActionManager;
@@ -28,13 +35,6 @@ import buildcraft.core.network.PacketUpdate;
 import buildcraft.core.proxy.CoreProxy;
 import buildcraft.transport.Pipe;
 
-import net.minecraft.src.Block;
-import net.minecraft.src.EntityPlayer;
-import net.minecraft.src.IInventory;
-import net.minecraft.src.ItemStack;
-import net.minecraft.src.Slot;
-import net.minecraft.src.TileEntity;
-
 public class ContainerGateInterface extends BuildCraftContainer {
 
 	IInventory playerIInventory;
@@ -45,6 +45,8 @@ public class ContainerGateInterface extends BuildCraftContainer {
 
 	private boolean isSynchronized = false;
 	private boolean isNetInitialized = false;
+	public boolean[] triggerState = new boolean[8];
+	private int lastTriggerState = 0;
 
 	public ContainerGateInterface(IInventory playerInventory, Pipe pipe) {
 		super(0);
@@ -214,10 +216,44 @@ public class ContainerGateInterface extends BuildCraftContainer {
 			CoreProxy.proxy.sendToServer(new PacketCoordinates(PacketIds.GATE_REQUEST_SELECTION, pipe.xCoord, pipe.yCoord, pipe.zCoord)
 					.getPacket());
 		}
-
+	}
+	
+	@Override
+	public void updateProgressBar(int id, int state) {
+		if(id == 0 /* Trigger state update */){
+			for(int i = 0; i < 8; i++){
+				/* Bit mask of triggers */
+				triggerState[i] = ((state >> i) & 0x01) == 0x01;
+			}
+		}
 	}
 
 	/** SERVER SIDE **/
+	private int calculateTriggerState(){
+		int state = 0;
+		for(int i = 0; i < triggerState.length; i++){
+			if(pipe.activatedTriggers[i] != null){
+				triggerState[i] = isNearbyTriggerActive(pipe.activatedTriggers[i], pipe.getTriggerParameter(i));
+			}
+			state |= triggerState[i] ? 0x01 << i : 0x0;
+		}
+		return state;
+	}
+	
+	@Override
+	public void updateCraftingResults() {
+		super.updateCraftingResults();
+		if(CoreProxy.proxy.isRenderWorld(pipe.worldObj)) return; /* Server only from this point */
+		int state = calculateTriggerState();
+		if(state != lastTriggerState){
+			for(int i = 0; i < this.crafters.size(); i++){
+				ICrafting viewingPlayer = (ICrafting)this.crafters.get(i);
+				
+				viewingPlayer.sendProgressBarUpdate(this, 0 /* State update */, state);
+			}
+			lastTriggerState = state;
+		}
+	}
 
 	public void handleInitRequest(EntityPlayer player) {
 		sendActions(player);
diff --git a/common/buildcraft/transport/gui/GuiGateInterface.java b/common/buildcraft/transport/gui/GuiGateInterface.java
index f6d71833..f9977a03 100644
--- a/common/buildcraft/transport/gui/GuiGateInterface.java
+++ b/common/buildcraft/transport/gui/GuiGateInterface.java
@@ -260,6 +260,7 @@ public class GuiGateInterface extends GuiAdvancedInterface {
 		int cornerY = (height - ySize) / 2;
 		drawTexturedModalRect(cornerX, cornerY, 0, 0, xSize, ySize);
 
+		int triggerTracker = 0;
 		for (int s = 0; s < slots.length; ++s) {
 			AdvancedSlot slot = slots[s];
 
@@ -267,12 +268,8 @@ public class GuiGateInterface extends GuiAdvancedInterface {
 				ITrigger trigger = ((TriggerSlot) slot).getTrigger();
 
 				if (_container.getGateOrdinal() >= GateKind.AND_3.ordinal()) {
-					ITriggerParameter parameter = null;
-
-					if (slots[s + nbEntries * 2] != null && slots[s + nbEntries * 2].isDefined())
-						parameter = ((TriggerParameterSlot) slots[s + nbEntries * 2]).getTriggerParameter();
-
-					if (_container.isNearbyTriggerActive(trigger, parameter)) {
+					
+					if (_container.triggerState[triggerTracker++]) {
 						mc.renderEngine.bindTexture(texture);
 
 						drawTexturedModalRect(cornerX + slot.x + 35, cornerY + slot.y + 6, 176, 18, 18, 4);
@@ -283,7 +280,7 @@ public class GuiGateInterface extends GuiAdvancedInterface {
 
 						drawTexturedModalRect(cornerX + slot.x + 17, cornerY + slot.y - 1, 176, 0, 18, 18);
 					}
-				} else if (_container.isNearbyTriggerActive(trigger, null)) {
+				} else if (_container.triggerState[triggerTracker++]) {
 					mc.renderEngine.bindTexture(texture);
 
 					drawTexturedModalRect(cornerX + slot.x + 17, cornerY + slot.y + 6, 176, 18, 18, 4);