diff --git a/build.gradle b/build.gradle
index 7abc9582f..c23c681a4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -67,7 +67,7 @@ minecraft {
 }
 
 repositories {
-    maven { url "http://maven.cil.li/" }
+    maven { url "https://maven.cil.li/" }
 }
 
 configurations {
diff --git a/src/main/resources/assets/opencomputers/loot/openos/etc/profile.lua b/src/main/resources/assets/opencomputers/loot/openos/etc/profile.lua
index 32a945d3b..52e054734 100644
--- a/src/main/resources/assets/opencomputers/loot/openos/etc/profile.lua
+++ b/src/main/resources/assets/opencomputers/loot/openos/etc/profile.lua
@@ -26,7 +26,7 @@ shell.setAlias("..", "cd ..")
 shell.setAlias("df", "df -h")
 shell.setAlias("grep", "grep --color")
 shell.setAlias("more", "less --noback")
-shell.setAlias("reset", "clear; resolution `cat /dev/components/by-type/gpu/0/maxResolution`")
+shell.setAlias("reset", "resolution `cat /dev/components/by-type/gpu/0/maxResolution`")
 
 os.setenv("EDITOR", "/bin/edit")
 os.setenv("HISTSIZE", "10")
diff --git a/src/main/scala/li/cil/oc/server/component/GraphicsCard.scala b/src/main/scala/li/cil/oc/server/component/GraphicsCard.scala
index f38820ccc..e91b819da 100644
--- a/src/main/scala/li/cil/oc/server/component/GraphicsCard.scala
+++ b/src/main/scala/li/cil/oc/server/component/GraphicsCard.scala
@@ -101,7 +101,7 @@ class GraphicsCard(val tier: Int) extends AbstractManagedEnvironment with Device
             s.setForegroundColor(0xFFFFFF)
             s.setBackgroundColor(0x000000)
           }
-          else context.pause(0.2) // To discourage outputting "in realtime" to multiple screens using one GPU.
+          else context.pause(0) // To discourage outputting "in realtime" to multiple screens using one GPU.
           result(true)
         })
       case _ => result(Unit, "not a screen")
diff --git a/src/main/scala/li/cil/oc/server/machine/Machine.scala b/src/main/scala/li/cil/oc/server/machine/Machine.scala
index fc353a92d..0766380e8 100644
--- a/src/main/scala/li/cil/oc/server/machine/Machine.scala
+++ b/src/main/scala/li/cil/oc/server/machine/Machine.scala
@@ -311,6 +311,21 @@ class Machine(val host: MachineHost) extends AbstractManagedEnvironment with mac
     }
   }
 
+  def convertArg(param: Any): AnyRef = {
+    param match {
+      case arg: java.lang.Boolean => arg
+      case arg: java.lang.Character => Double.box(arg.toDouble)
+      case arg: java.lang.Long => arg
+      case arg: java.lang.Number => Double.box(arg.doubleValue)
+      case arg: java.lang.String => arg
+      case arg: Array[Byte] => arg
+      case arg: NBTTagCompound => arg
+      case arg =>
+        OpenComputers.log.warn("Trying to push signal with an unsupported argument of type " + arg.getClass.getName)
+        null
+    }
+  }
+
   override def signal(name: String, args: AnyRef*): Boolean = {
     state.synchronized(state.top match {
       case Machine.State.Stopped | Machine.State.Stopping => return false
@@ -322,19 +337,22 @@ class Machine(val host: MachineHost) extends AbstractManagedEnvironment with mac
         else {
           signals.enqueue(new Machine.Signal(name, args.map {
             case null | Unit | None => null
-            case arg: java.lang.Boolean => arg
-            case arg: java.lang.Character => Double.box(arg.toDouble)
-            case arg: java.lang.Long => arg
-            case arg: java.lang.Number => Double.box(arg.doubleValue)
-            case arg: java.lang.String => arg
-            case arg: Array[Byte] => arg
             case arg: Map[_, _] if arg.isEmpty || arg.head._1.isInstanceOf[String] && arg.head._2.isInstanceOf[String] => arg
             case arg: mutable.Map[_, _] if arg.isEmpty || arg.head._1.isInstanceOf[String] && arg.head._2.isInstanceOf[String] => arg.toMap
-            case arg: java.util.Map[_, _] if arg.isEmpty || arg.head._1.isInstanceOf[String] && arg.head._2.isInstanceOf[String] => arg.toMap
-            case arg: NBTTagCompound => arg
-            case arg =>
-              OpenComputers.log.warn("Trying to push signal with an unsupported argument of type " + arg.getClass.getName)
-              null
+            case arg: java.util.Map[_, _] => {
+              val convertedMap = new mutable.HashMap[AnyRef, AnyRef]
+              for ((key, value) <- arg) {
+                val convertedKey = convertArg(key)
+                if (convertedKey != null) {
+                  val convertedValue = convertArg(value)
+                  if (convertedValue != null) {
+                    convertedMap += convertedKey -> convertedValue
+                  }
+                }
+              }
+              convertedMap
+            }
+            case arg => convertArg(arg)
           }.toArray[AnyRef]))
         }
       }