diff --git a/examples/processing/grid24x8z_clouds/OPC.pde b/examples/processing/grid24x8z_clouds/OPC.pde
index 0f4b8f22ea45f8d97a9798a73e341a842f9b6537..47d7b38509249ed52ac463cd58822dc4e4820fc1 100644
--- a/examples/processing/grid24x8z_clouds/OPC.pde
+++ b/examples/processing/grid24x8z_clouds/OPC.pde
@@ -30,7 +30,7 @@ public class OPC implements Runnable
     thread = new Thread(this);
     thread.start();
     this.enableShowLocations = true;
-    parent.parent.registerMethod("draw", this);
+    parent.registerMethod("draw", this);
   }
 
   // Set the location of a single LED
@@ -361,7 +361,7 @@ public class OPC implements Runnable
 
       // Pause thread to avoid massive CPU load
       try {
-        thread.sleep(500);
+        Thread.sleep(500);
       }
       catch(InterruptedException e) {
       }
diff --git a/examples/processing/grid8x8_dot/OPC.pde b/examples/processing/grid8x8_dot/OPC.pde
index f83d187f66dd763f718776c8364e336e4ef83d89..47d7b38509249ed52ac463cd58822dc4e4820fc1 100644
--- a/examples/processing/grid8x8_dot/OPC.pde
+++ b/examples/processing/grid8x8_dot/OPC.pde
@@ -367,4 +367,5 @@ public class OPC implements Runnable
       }
     }
   }
-}
\ No newline at end of file
+}
+