diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Maintenance.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Maintenance.java
index f32c39aa..e2aaf30e 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Maintenance.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch_Maintenance.java
@@ -1,8 +1,5 @@
 package gregtech.api.metatileentity.implementations;
 
-import java.util.ArrayList;
-import java.util.List;
-
 import gregtech.GT_Mod;
 import gregtech.api.GregTech_API;
 import gregtech.api.enums.ItemList;
@@ -28,6 +25,8 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 import scala.actors.threadpool.Arrays;
 
+import java.util.List;
+
 public class GT_MetaTileEntity_Hatch_Maintenance extends GT_MetaTileEntity_Hatch {
     public boolean mWrench = false, mScrewdriver = false, mSoftHammer = false, mHardHammer = false, mSolderingTool = false, mCrowbar = false, mAuto;
     public GT_MetaTileEntity_MultiBlockBase mController = null;
diff --git a/src/main/java/gregtech/api/util/GT_Utility.java b/src/main/java/gregtech/api/util/GT_Utility.java
index eae5fdbb..c9d1e6db 100644
--- a/src/main/java/gregtech/api/util/GT_Utility.java
+++ b/src/main/java/gregtech/api/util/GT_Utility.java
@@ -1452,7 +1452,7 @@ public class GT_Utility {
 
     /**
      * This checks if the Dimension is really a Dimension and not another Planet or something.
-     * Used for my Teleporter.
+     * Used for my Teleporter.    //I have a different opinion... Planets are fine :P
      */
     public static boolean isRealDimension(int aDimensionID) {
         try {
@@ -1462,7 +1462,7 @@ public class GT_Utility {
         try {
             if (DimensionManager.getProvider(aDimensionID).getClass().getName().contains("TwilightForest")) return true;
         } catch (Throwable e) {/*Do nothing*/}
-        return GregTech_API.sDimensionalList.contains(aDimensionID);
+        return !GregTech_API.sDimensionalList.contains(aDimensionID) && DimensionManager.isDimensionRegistered(aDimensionID);
     }
 
     public static boolean moveEntityToDimensionAtCoords(Entity aEntity, int aDimension, double aX, double aY, double aZ) {
diff --git a/src/main/java/gregtech/common/gui/GT_GUIContainer_MicrowaveEnergyTransmitter.java b/src/main/java/gregtech/common/gui/GT_GUIContainer_MicrowaveEnergyTransmitter.java
index 0d03b12a..756c8c45 100644
--- a/src/main/java/gregtech/common/gui/GT_GUIContainer_MicrowaveEnergyTransmitter.java
+++ b/src/main/java/gregtech/common/gui/GT_GUIContainer_MicrowaveEnergyTransmitter.java
@@ -4,6 +4,7 @@ import gregtech.api.gui.GT_GUIContainerMetaTile_Machine;
 import gregtech.api.interfaces.tileentity.IGregTechTileEntity;
 import gregtech.api.util.GT_Utility;
 import net.minecraft.entity.player.InventoryPlayer;
+import net.minecraftforge.common.DimensionManager;
 
 import static gregtech.api.enums.GT_Values.RES_PATH_GUI;
 
@@ -21,6 +22,7 @@ public class GT_GUIContainer_MicrowaveEnergyTransmitter
             this.fontRendererObj.drawString("Z: " + GT_Utility.parseNumberToString(((GT_Container_MicrowaveEnergyTransmitter) this.mContainer).mTargetZ), 46, 32, 16448255);
             if (((GT_Container_MicrowaveEnergyTransmitter) this.mContainer).mEgg > 0) {
                 this.fontRendererObj.drawString("Dim: " + GT_Utility.parseNumberToString(((GT_Container_MicrowaveEnergyTransmitter) this.mContainer).mTargetD), 46, 40, 16448255);
+                this.fontRendererObj.drawString("Dim Valid: " + (DimensionManager.isDimensionRegistered(((GT_Container_MicrowaveEnergyTransmitter) this.mContainer).mTargetD) ? "Yes":"No"), 46, 48, 16448255);
             }
         }
     }
diff --git a/src/main/java/gregtech/common/gui/GT_GUIContainer_Teleporter.java b/src/main/java/gregtech/common/gui/GT_GUIContainer_Teleporter.java
index 6f7e2808..74973876 100644
--- a/src/main/java/gregtech/common/gui/GT_GUIContainer_Teleporter.java
+++ b/src/main/java/gregtech/common/gui/GT_GUIContainer_Teleporter.java
@@ -4,6 +4,7 @@ import gregtech.api.gui.GT_GUIContainerMetaTile_Machine;
 import gregtech.api.interfaces.tileentity.IGregTechTileEntity;
 import gregtech.api.util.GT_Utility;
 import net.minecraft.entity.player.InventoryPlayer;
+import net.minecraftforge.common.DimensionManager;
 
 import static gregtech.api.enums.GT_Values.RES_PATH_GUI;
 
@@ -21,6 +22,7 @@ public class GT_GUIContainer_Teleporter
             this.fontRendererObj.drawString("Z: " + GT_Utility.parseNumberToString(((GT_Container_Teleporter) this.mContainer).mTargetZ), 46, 32, 16448255);
             if (((GT_Container_Teleporter) this.mContainer).mEgg > 0) {
                 this.fontRendererObj.drawString("Dim: " + GT_Utility.parseNumberToString(((GT_Container_Teleporter) this.mContainer).mTargetD), 46, 40, 16448255);
+                this.fontRendererObj.drawString("Dim Valid: " + (DimensionManager.isDimensionRegistered(((GT_Container_Teleporter) this.mContainer).mTargetD) ? "Yes":"No"), 46, 48, 16448255);
             }
         }
     }
diff --git a/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_MicrowaveEnergyTransmitter.java b/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_MicrowaveEnergyTransmitter.java
index 43b88537..8b9b64d3 100644
--- a/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_MicrowaveEnergyTransmitter.java
+++ b/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_MicrowaveEnergyTransmitter.java
@@ -80,7 +80,8 @@ public class GT_MetaTileEntity_MicrowaveEnergyTransmitter extends GT_MetaTileEnt
                 "X: "+EnumChatFormatting.GREEN+ this.mTargetX+EnumChatFormatting.RESET,
                 "Y: "+EnumChatFormatting.GREEN+ this.mTargetY+EnumChatFormatting.RESET,
                 "Z: "+EnumChatFormatting.GREEN+ this.mTargetZ+EnumChatFormatting.RESET,
-                "Dimension: " + EnumChatFormatting.YELLOW+this.mTargetD+EnumChatFormatting.RESET
+                "Dimension: " + EnumChatFormatting.YELLOW+this.mTargetD+EnumChatFormatting.RESET,
+                "Dimension Valid: " + (DimensionManager.isDimensionRegistered(this.mTargetD) ? EnumChatFormatting.GREEN+"Yes"+EnumChatFormatting.RESET : EnumChatFormatting.RED+"No"+EnumChatFormatting.RESET)
         };
     }
 
diff --git a/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_Teleporter.java b/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_Teleporter.java
index 3016a277..91293513 100644
--- a/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_Teleporter.java
+++ b/src/main/java/gregtech/common/tileentities/machines/basic/GT_MetaTileEntity_Teleporter.java
@@ -174,7 +174,8 @@ public class GT_MetaTileEntity_Teleporter extends GT_MetaTileEntity_BasicTank {
                 "X: "+ EnumChatFormatting.GREEN+ this.mTargetX+EnumChatFormatting.RESET,
                 "Y: "+EnumChatFormatting.GREEN+ this.mTargetY+EnumChatFormatting.RESET,
                 "Z: "+EnumChatFormatting.GREEN+ this.mTargetZ+EnumChatFormatting.RESET,
-                "Dimension: " + EnumChatFormatting.YELLOW+this.mTargetD+EnumChatFormatting.RESET
+                "Dimension: " + EnumChatFormatting.YELLOW+this.mTargetD+EnumChatFormatting.RESET,
+                "Dimension Valid: " + (DimensionManager.isDimensionRegistered(this.mTargetD) ? EnumChatFormatting.GREEN+"Yes"+EnumChatFormatting.RESET : EnumChatFormatting.RED+"No"+EnumChatFormatting.RESET)
         };
     }