diff --git a/src/main/java/ellpeck/actuallyadditions/blocks/BlockBookletStand.java b/src/main/java/ellpeck/actuallyadditions/blocks/BlockBookletStand.java
index 1f18c0e45..479ae845e 100644
--- a/src/main/java/ellpeck/actuallyadditions/blocks/BlockBookletStand.java
+++ b/src/main/java/ellpeck/actuallyadditions/blocks/BlockBookletStand.java
@@ -89,8 +89,8 @@ public class BlockBookletStand extends BlockContainerBase implements IActAddItem
         TileEntityBookletStand tile = (TileEntityBookletStand)world.getTileEntity(x, y, z);
         if(tile != null){
             //Assign a UUID
-            if(tile.assignedPlayerUUID == null){
-                tile.assignedPlayerUUID = player.getUniqueID();
+            if(tile.assignedPlayer == null){
+                tile.assignedPlayer = player.getCommandSenderName();
                 tile.markDirty();
                 world.markBlockForUpdate(x, y, z);
             }
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/GuiBookletStand.java b/src/main/java/ellpeck/actuallyadditions/booklet/GuiBookletStand.java
index bc56285be..5a07476af 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/GuiBookletStand.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/GuiBookletStand.java
@@ -19,6 +19,8 @@ import ellpeck.actuallyadditions.tile.TileEntityBookletStand;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiButton;
 
+import java.util.Objects;
+
 @SideOnly(Side.CLIENT)
 public class GuiBookletStand extends GuiBooklet{
 
@@ -52,7 +54,7 @@ public class GuiBookletStand extends GuiBooklet{
         };
         this.buttonList.add(this.buttonSetPage);
 
-        this.buttonSetPage.visible = Minecraft.getMinecraft().thePlayer.getUniqueID().equals(this.theStand.assignedPlayerUUID);
+        this.buttonSetPage.visible = Objects.equals(Minecraft.getMinecraft().thePlayer.getCommandSenderName(), this.theStand.assignedPlayer);
 
         //Open the pages the book was assigned
         BookletUtils.openIndexEntry(this, this.theStand.assignedEntry, this.theStand.assignedPageInIndex, true);
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/page/BookletPage.java b/src/main/java/ellpeck/actuallyadditions/booklet/page/BookletPage.java
index 4015b9729..512c9db53 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/page/BookletPage.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/page/BookletPage.java
@@ -10,6 +10,8 @@
 
 package ellpeck.actuallyadditions.booklet.page;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ellpeck.actuallyadditions.booklet.BookletUtils;
 import ellpeck.actuallyadditions.booklet.GuiBooklet;
 import ellpeck.actuallyadditions.booklet.InitBooklet;
@@ -58,6 +60,7 @@ public class BookletPage{
         }
     }
 
+    @SideOnly(Side.CLIENT)
     public static void renderItem(GuiScreen gui, ItemStack stack, int x, int y, float scale){
         GL11.glPushMatrix();
         GL11.glEnable(GL11.GL_BLEND);
@@ -113,19 +116,23 @@ public class BookletPage{
         return this;
     }
 
+    @SideOnly(Side.CLIENT)
     public void renderPre(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
 
     }
 
+    @SideOnly(Side.CLIENT)
     public void render(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
 
     }
 
+    @SideOnly(Side.CLIENT)
     public void updateScreen(int ticksElapsed){
 
     }
 
     @SuppressWarnings("unchecked")
+    @SideOnly(Side.CLIENT)
     protected void renderTooltipAndTransfer(GuiBooklet gui, ItemStack stack, int x, int y, boolean checkAndTransfer, boolean mousePressed){
         boolean flagBefore = gui.mc.fontRenderer.getUnicodeFlag();
         gui.mc.fontRenderer.setUnicodeFlag(false);
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCoffeeRecipe.java b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCoffeeRecipe.java
index 22bb9301d..c7d50bbac 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCoffeeRecipe.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCoffeeRecipe.java
@@ -10,6 +10,8 @@
 
 package ellpeck.actuallyadditions.booklet.page;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ellpeck.actuallyadditions.booklet.GuiBooklet;
 import ellpeck.actuallyadditions.items.InitItems;
 import ellpeck.actuallyadditions.items.ItemCoffee;
@@ -28,6 +30,7 @@ public class PageCoffeeRecipe extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void renderPre(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         gui.mc.getTextureManager().bindTexture(ClientProxy.bulletForMyValentine ? GuiBooklet.resLocValentine : GuiBooklet.resLoc);
         gui.drawTexturedModalRect(gui.guiLeft+19, gui.guiTop+20, 146, 94, 99, 60);
@@ -35,6 +38,7 @@ public class PageCoffeeRecipe extends BookletPage{
 
     @SuppressWarnings("unchecked")
     @Override
+    @SideOnly(Side.CLIENT)
     public void render(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         String strg = "Coffee Machine Recipe";
         gui.mc.fontRenderer.drawString(strg, gui.guiLeft+gui.xSize/2-gui.mc.fontRenderer.getStringWidth(strg)/2, gui.guiTop+10, 0);
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCrafting.java b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCrafting.java
index 6bf4c8002..2c292afa5 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCrafting.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCrafting.java
@@ -11,6 +11,8 @@
 package ellpeck.actuallyadditions.booklet.page;
 
 import cpw.mods.fml.relauncher.ReflectionHelper;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ellpeck.actuallyadditions.booklet.GuiBooklet;
 import ellpeck.actuallyadditions.proxy.ClientProxy;
 import ellpeck.actuallyadditions.util.ModUtil;
@@ -43,6 +45,7 @@ public class PageCrafting extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void renderPre(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         if(this.recipes[this.recipePos] != null){
             gui.mc.getTextureManager().bindTexture(ClientProxy.bulletForMyValentine ? GuiBooklet.resLocValentine : GuiBooklet.resLoc);
@@ -52,6 +55,7 @@ public class PageCrafting extends BookletPage{
 
     @SuppressWarnings("unchecked")
     @Override
+    @SideOnly(Side.CLIENT)
     public void render(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         IRecipe recipe = this.recipes[this.recipePos];
 
@@ -139,6 +143,7 @@ public class PageCrafting extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void updateScreen(int ticksElapsed){
         if(ticksElapsed%15 == 0){
             if(this.recipePos+1 >= this.recipes.length){
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCrusherRecipe.java b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCrusherRecipe.java
index 642d3b0f5..12e15062b 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCrusherRecipe.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageCrusherRecipe.java
@@ -10,6 +10,8 @@
 
 package ellpeck.actuallyadditions.booklet.page;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ellpeck.actuallyadditions.booklet.GuiBooklet;
 import ellpeck.actuallyadditions.proxy.ClientProxy;
 import ellpeck.actuallyadditions.recipe.CrusherRecipeRegistry;
@@ -35,6 +37,7 @@ public class PageCrusherRecipe extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void renderPre(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         if(recipe != null){
             gui.mc.getTextureManager().bindTexture(ClientProxy.bulletForMyValentine ? GuiBooklet.resLocValentine : GuiBooklet.resLoc);
@@ -44,6 +47,7 @@ public class PageCrusherRecipe extends BookletPage{
 
     @SuppressWarnings("unchecked")
     @Override
+    @SideOnly(Side.CLIENT)
     public void render(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         if(recipe == null){
             gui.mc.fontRenderer.drawSplitString(EnumChatFormatting.DARK_RED+StringUtil.localize("booklet."+ModUtil.MOD_ID_LOWER+".recipeDisabled"), gui.guiLeft+14, gui.guiTop+15, 115, 0);
@@ -105,6 +109,7 @@ public class PageCrusherRecipe extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void updateScreen(int ticksElapsed){
         if(ticksElapsed%10 == 0){
             List<ItemStack> outputTwos = this.recipe.getRecipeOutputTwos();
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageFurnace.java b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageFurnace.java
index bc1e36b25..c46b4dc5d 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageFurnace.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageFurnace.java
@@ -10,6 +10,8 @@
 
 package ellpeck.actuallyadditions.booklet.page;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ellpeck.actuallyadditions.booklet.GuiBooklet;
 import ellpeck.actuallyadditions.proxy.ClientProxy;
 import ellpeck.actuallyadditions.util.ModUtil;
@@ -38,6 +40,7 @@ public class PageFurnace extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void renderPre(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         if(this.input != null || this.getInputForOutput(this.result) != null){
             gui.mc.getTextureManager().bindTexture(ClientProxy.bulletForMyValentine ? GuiBooklet.resLocValentine : GuiBooklet.resLoc);
@@ -47,6 +50,7 @@ public class PageFurnace extends BookletPage{
 
     @SuppressWarnings("unchecked")
     @Override
+    @SideOnly(Side.CLIENT)
     public void render(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         ItemStack input = this.input != null ? this.input : this.getInputForOutput(this.result);
         if(input == null){
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/page/PagePicture.java b/src/main/java/ellpeck/actuallyadditions/booklet/page/PagePicture.java
index fbd083f87..0f10e1912 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/page/PagePicture.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/page/PagePicture.java
@@ -10,6 +10,8 @@
 
 package ellpeck.actuallyadditions.booklet.page;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ellpeck.actuallyadditions.booklet.GuiBooklet;
 import ellpeck.actuallyadditions.util.AssetUtil;
 import net.minecraft.util.ResourceLocation;
@@ -26,6 +28,7 @@ public class PagePicture extends PageTextOnly{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void renderPre(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         gui.mc.getTextureManager().bindTexture(this.resLoc);
         gui.drawTexturedModalRect(gui.guiLeft, gui.guiTop, 0, 0, gui.xSize, gui.ySize);
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageReconstructor.java b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageReconstructor.java
index 5378aeb21..c3c1c59c9 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageReconstructor.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageReconstructor.java
@@ -10,6 +10,8 @@
 
 package ellpeck.actuallyadditions.booklet.page;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ellpeck.actuallyadditions.blocks.InitBlocks;
 import ellpeck.actuallyadditions.booklet.GuiBooklet;
 import ellpeck.actuallyadditions.proxy.ClientProxy;
@@ -40,6 +42,7 @@ public class PageReconstructor extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void updateScreen(int ticksElapsed){
         if(ticksElapsed%15 == 0){
             if(this.recipePos+1 >= this.recipes.length){
@@ -52,6 +55,7 @@ public class PageReconstructor extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void renderPre(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         if(this.recipes[this.recipePos] != null){
             gui.mc.getTextureManager().bindTexture(ClientProxy.bulletForMyValentine ? GuiBooklet.resLocValentine : GuiBooklet.resLoc);
@@ -61,6 +65,7 @@ public class PageReconstructor extends BookletPage{
 
     @SuppressWarnings("unchecked")
     @Override
+    @SideOnly(Side.CLIENT)
     public void render(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         ReconstructorRecipeHandler.Recipe recipe = this.recipes[this.recipePos];
         if(recipe == null){
diff --git a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageTextOnly.java b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageTextOnly.java
index d6021c5d9..8444a61d7 100644
--- a/src/main/java/ellpeck/actuallyadditions/booklet/page/PageTextOnly.java
+++ b/src/main/java/ellpeck/actuallyadditions/booklet/page/PageTextOnly.java
@@ -10,6 +10,8 @@
 
 package ellpeck.actuallyadditions.booklet.page;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 import ellpeck.actuallyadditions.booklet.GuiBooklet;
 import net.minecraft.item.ItemStack;
 
@@ -28,6 +30,7 @@ public class PageTextOnly extends BookletPage{
     }
 
     @Override
+    @SideOnly(Side.CLIENT)
     public void renderPre(GuiBooklet gui, int mouseX, int mouseY, int ticksElapsed, boolean mousePressed){
         String text = gui.currentPage.getText();
         if(text != null && !text.isEmpty()){
diff --git a/src/main/java/ellpeck/actuallyadditions/items/ItemDrill.java b/src/main/java/ellpeck/actuallyadditions/items/ItemDrill.java
index 66d57069b..e7241ebc9 100644
--- a/src/main/java/ellpeck/actuallyadditions/items/ItemDrill.java
+++ b/src/main/java/ellpeck/actuallyadditions/items/ItemDrill.java
@@ -119,7 +119,7 @@ public class ItemDrill extends ItemEnergy{
                         //Notify the Player and log the Exception
                         catch(Exception e){
                             player.addChatComponentMessage(new ChatComponentText("Ouch! That really hurt! You must have done something wrong, don't do that again please!"));
-                            ModUtil.LOGGER.error("Player "+player.getDisplayName()+" who should place a Block using a Drill at "+player.posX+", "+player.posY+", "+player.posZ+" in World "+world.provider.dimensionId+" threw an Exception! Don't let that happen again!");
+                            ModUtil.LOGGER.error("Player "+player.getCommandSenderName()+" who should place a Block using a Drill at "+player.posX+", "+player.posY+", "+player.posZ+" in World "+world.provider.dimensionId+" threw an Exception! Don't let that happen again!");
                         }
                     }
                     else{
diff --git a/src/main/java/ellpeck/actuallyadditions/misc/special/SpecialRenderInit.java b/src/main/java/ellpeck/actuallyadditions/misc/special/SpecialRenderInit.java
index 190c7065c..3b3914a38 100644
--- a/src/main/java/ellpeck/actuallyadditions/misc/special/SpecialRenderInit.java
+++ b/src/main/java/ellpeck/actuallyadditions/misc/special/SpecialRenderInit.java
@@ -37,7 +37,7 @@ public class SpecialRenderInit{
         if(!specialList.isEmpty()){
             for(Map.Entry<String, RenderSpecial> entry : specialList.entrySet()){
                 //Does the player have one of the names from the list?
-                if(StringUtil.equalsToLowerCase(entry.getKey(), event.entityPlayer.getDisplayName())){
+                if(StringUtil.equalsToLowerCase(entry.getKey(), event.entityPlayer.getCommandSenderName())){
                     //Render the special Item/Block
                     entry.getValue().render(event.entityPlayer);
                     break;
diff --git a/src/main/java/ellpeck/actuallyadditions/network/PacketBookletStandButton.java b/src/main/java/ellpeck/actuallyadditions/network/PacketBookletStandButton.java
index 42cd8a991..e068fcaaa 100644
--- a/src/main/java/ellpeck/actuallyadditions/network/PacketBookletStandButton.java
+++ b/src/main/java/ellpeck/actuallyadditions/network/PacketBookletStandButton.java
@@ -24,6 +24,8 @@ import net.minecraft.tileentity.TileEntity;
 import net.minecraft.world.World;
 import net.minecraftforge.common.DimensionManager;
 
+import java.util.Objects;
+
 public class PacketBookletStandButton implements IMessage{
 
     private int tileX;
@@ -92,7 +94,7 @@ public class PacketBookletStandButton implements IMessage{
             EntityPlayer player = (EntityPlayer)world.getEntityByID(message.playerID);
 
             if(tile instanceof TileEntityBookletStand){
-                if(player.getUniqueID().equals(((TileEntityBookletStand)tile).assignedPlayerUUID)){
+                if(Objects.equals(player.getCommandSenderName(), ((TileEntityBookletStand)tile).assignedPlayer)){
                     ((TileEntityBookletStand)tile).setEntry(message.entryID, message.chapterID, message.pageID, message.pageInIndex);
                     world.markBlockForUpdate(message.tileX, message.tileY, message.tileZ);
                 }
diff --git a/src/main/java/ellpeck/actuallyadditions/tile/TileEntityBookletStand.java b/src/main/java/ellpeck/actuallyadditions/tile/TileEntityBookletStand.java
index 8654ee170..81edfd44c 100644
--- a/src/main/java/ellpeck/actuallyadditions/tile/TileEntityBookletStand.java
+++ b/src/main/java/ellpeck/actuallyadditions/tile/TileEntityBookletStand.java
@@ -16,8 +16,6 @@ import ellpeck.actuallyadditions.booklet.entry.BookletEntry;
 import ellpeck.actuallyadditions.booklet.page.BookletPage;
 import net.minecraft.nbt.NBTTagCompound;
 
-import java.util.UUID;
-
 public class TileEntityBookletStand extends TileEntityBase{
 
     public BookletChapter assignedChapter;
@@ -25,7 +23,7 @@ public class TileEntityBookletStand extends TileEntityBase{
     public BookletEntry assignedEntry;
     public int assignedPageInIndex;
 
-    public UUID assignedPlayerUUID;
+    public String assignedPlayer;
 
     @Override
     public boolean canUpdate(){
@@ -39,9 +37,8 @@ public class TileEntityBookletStand extends TileEntityBase{
         compound.setInteger("Page", this.assignedPage == null ? -1 : this.assignedPage.getID());
         compound.setInteger("PageInIndex", this.assignedPageInIndex);
 
-        if(this.assignedPlayerUUID != null){
-            compound.setLong("PlayerLeastSignificant", this.assignedPlayerUUID.getLeastSignificantBits());
-            compound.setLong("PlayerMostSignificant", this.assignedPlayerUUID.getMostSignificantBits());
+        if(this.assignedPlayer != null){
+            compound.setString("Player", this.assignedPlayer);
         }
     }
 
@@ -49,9 +46,9 @@ public class TileEntityBookletStand extends TileEntityBase{
     public void readSyncableNBT(NBTTagCompound compound, boolean isForSync){
         this.setEntry(compound.getInteger("Entry"), compound.getInteger("Chapter"), compound.getInteger("Page"), compound.getInteger("PageInIndex"));
 
-        long mostSigBits = compound.getLong("PlayerMostSignificant");
-        if(mostSigBits > 0){
-            this.assignedPlayerUUID = new UUID(mostSigBits, compound.getLong("PlayerLeastSignificant"));
+        String player = compound.getString("Player");
+        if(player != null){
+            this.assignedPlayer = player;
         }
     }