diff --git a/src/main/scala/li/cil/oc/client/GuiHandler.scala b/src/main/scala/li/cil/oc/client/GuiHandler.scala
index 2afb8beef..d4aef3295 100644
--- a/src/main/scala/li/cil/oc/client/GuiHandler.scala
+++ b/src/main/scala/li/cil/oc/client/GuiHandler.scala
@@ -88,7 +88,7 @@ object GuiHandler extends CommonGuiHandler {
               item.Tablet.get(stack, player).components.collect {
                 case Some(buffer: api.internal.TextBuffer) => buffer
               }.headOption match {
-                case Some(buffer: api.internal.TextBuffer) => new gui.Screen(buffer, true, () => true, () => true)
+                case Some(buffer: api.internal.TextBuffer) => new gui.Screen(buffer, true, () => true, () => buffer.isRenderingEnabled)
                 case _ => null
               }
             }
diff --git a/src/main/scala/li/cil/oc/common/item/Tablet.scala b/src/main/scala/li/cil/oc/common/item/Tablet.scala
index 250a6315f..34a9510a0 100644
--- a/src/main/scala/li/cil/oc/common/item/Tablet.scala
+++ b/src/main/scala/li/cil/oc/common/item/Tablet.scala
@@ -418,6 +418,13 @@ class TabletWrapper(var stack: ItemStack, var player: EntityPlayer) extends Comp
       if (lastRunning != machine.isRunning) {
         lastRunning = machine.isRunning
         markDirty()
+
+        if (machine.isRunning) {
+          components collect {
+            case Some(buffer: api.internal.TextBuffer) =>
+              buffer.setPowerState(true)
+          }
+        }
       }
     }
   }