diff --git a/src/main/scala/li/cil/oc/common/Proxy.scala b/src/main/scala/li/cil/oc/common/Proxy.scala
index 2ff689ecd..e816d5db4 100644
--- a/src/main/scala/li/cil/oc/common/Proxy.scala
+++ b/src/main/scala/li/cil/oc/common/Proxy.scala
@@ -40,7 +40,6 @@ class Proxy {
         def call = FileSystem.fromClass(OpenComputers.getClass, Settings.resourceDomain, "lua/rom")
       },
       Settings.resourceDomain + "/lua/rom")
-
   }
 
   def init(e: FMLInitializationEvent) {
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Hologram.scala b/src/main/scala/li/cil/oc/common/tileentity/Hologram.scala
index 18a52e45d..05f2ce5b6 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Hologram.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Hologram.scala
@@ -82,14 +82,18 @@ class Hologram extends Environment with SidedEnvironment with Analyzable {
   @Callback(direct = true, doc = """function(x:number, z:number):number -- Returns the bit mask representing the specified column.""")
   def get(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
     val x = args.checkInteger(0) - 1
+    if (x < 0 || x >= width) throw new ArrayIndexOutOfBoundsException()
     val z = args.checkInteger(1) - 1
+    if (z < 0 || z >= width) throw new ArrayIndexOutOfBoundsException()
     result(volume(x + z * width))
   }
 
   @Callback(direct = true, limit = 256, doc = """function(x:number, z:number, value:number) -- Set the bit mask for the specified column.""")
   def set(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
     val x = args.checkInteger(0) - 1
+    if (x < 0 || x >= width) throw new ArrayIndexOutOfBoundsException()
     val z = args.checkInteger(1) - 1
+    if (z < 0 || z >= width) throw new ArrayIndexOutOfBoundsException()
     val value = args.checkInteger(2)
     volume(x + z * width) = value
     setDirty(x, z)
@@ -99,7 +103,9 @@ class Hologram extends Environment with SidedEnvironment with Analyzable {
   @Callback(direct = true, limit = 128, doc = """function(x:number, z:number, height:number) -- Fills a column to the specified height.""")
   def fill(computer: Context, args: Arguments): Array[AnyRef] = this.synchronized {
     val x = args.checkInteger(0) - 1
+    if (x < 0 || x >= width) throw new ArrayIndexOutOfBoundsException()
     val z = args.checkInteger(1) - 1
+    if (z < 0 || z >= width) throw new ArrayIndexOutOfBoundsException()
     val height = math.min(32, math.max(0, args.checkInteger(2)))
     // Bit shifts in the JVM only use the lowest five bits... so we have to
     // manually check the height, to avoid the shift being a no-op.
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Router.scala b/src/main/scala/li/cil/oc/common/tileentity/Router.scala
index 577c6e10e..7bc42220d 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Router.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Router.scala
@@ -53,7 +53,10 @@ class Router extends Hub with IPeripheral {
     case "transmit" =>
       val sendPort = checkPort(arguments, 0)
       val answerPort = checkPort(arguments, 1)
-      plugs.foreach(_.node.sendToReachable("network.message", Seq(Int.box(sendPort), Int.box(answerPort)) ++ arguments.drop(2): _*))
+      val data = Seq(Int.box(answerPort)) ++ arguments.drop(2)
+      plugs.foreach(plug => {
+        plug.node.sendToReachable("network.message", new Packet(plug.node.address, None, sendPort, data))
+      })
       null
     case "isWireless" => Array(java.lang.Boolean.FALSE)
     case _ => null